Success criteria on this page
- 1.1.1 Non-text Content (33)
- 1.2.1 Audio-only and Video-only (Prerecorded) (10)
- 1.2.2 Captions (Prerecorded) (10)
- 1.2.3 Audio Description or Media Alternative (Prerecorded) (5)
- 1.2.4 Captions (Live) (4)
- 1.2.5 Audio Description (Prerecorded) (3)
- 1.3.1 Info and Relationships (51)
- 1.3.2 Meaningful Sequence (10)
- 1.3.3 Sensory Characteristics (5)
- 1.3.4 Orientation (2)
- 1.3.5 Identify Input Purpose (8)
- 1.4.1 Use of Color (7)
- 1.4.2 Audio Control (1)
- 1.4.3 Contrast (Minimum) (31)
- 1.4.4 Resize Text (9)
- 1.4.5 Images of Text (5)
- 1.4.10 Reflow (10)
- 1.4.11 Non-text Contrast (31)
- 1.4.12 Text Spacing (5)
- 1.4.13 Content on Hover or Focus (5)
- 2.1.1 Keyboard (41)
- 2.1.2 No Keyboard Trap (4)
- 2.1.4 Character Key Shortcuts (2)
- 2.2.1 Timing Adjustable (8)
- 2.2.2 Pause, Stop, Hide (9)
- 2.4.1 Bypass Blocks (8)
- 2.4.2 Page Titled (6)
- 2.4.3 Focus Order (14)
- 2.4.4 Link Purpose (In Context) (21)
- 2.4.6 Headings and Labels (7)
- 2.4.7 Focus Visible (26)
- 2.4.11 Focus Not Obscured (Minimum) (5)
- 2.5.1 Pointer Gestures (2)
- 2.5.2 Pointer Cancellation (4)
- 2.5.3 Label in Name (6)
- 2.5.4 Motion Actuation (3)
- 2.5.7 Dragging Movements (3)
- 2.5.8 Target Size (Minimum) (28)
- 3.1.1 Language of Page (3)
- 3.1.2 Language of Parts (6)
- 3.2.1 On Focus (4)
- 3.2.2 On Input (8)
- 3.3.1 Error Identification (13)
- 3.3.2 Labels or Instructions (31)
- 3.3.3 Error Suggestion (6)
- 3.3.4 Error Prevention (Legal, Financial, Data) (8)
- 3.3.7 Redundant Entry (6)
- 3.3.8 Accessible Authentication (Minimum) (7)
- 4.1.2 Name, Role, Value (60)
- 4.1.3 Status Messages (18)
1. Perceivable
1.1.1 Non-text Content Level A — 33 scenarios
SC111-F001 — Informative image missing alt
SC111-F002 — Informative image has empty alt
SC111-F003 — Filename used as alt
SC111-F004 — Image button missing accessible name
SC111-F005 — CSS background image conveys essential information
Order 4471
SC111-F006 — SVG has no accessible name
SC111-F007 — Canvas chart has no text alternative
SC111-F008 — Icon-only link has no name
SC111-F009 — ASCII art lacks text alternative
/\_/\ ( o.o ) > ^ <
SC111-F010 — CAPTCHA lacks equivalent alternative
SC111-F011 — Image map area lacks alt
SC111-F012 — Object element lacks text alternative
SC111-F013 — Embedded image in iframe has no equivalent
SC111-F014 — Decorative image has misleading alt
Chapter 4 begins here.
SC111-F015 — Complex chart has inadequate short alternative
SC111-F016 — Logo alt omits organization identity
SC111-F017 — Linked image alt describes appearance not destination
SC111-F018 — Input type=image has empty alt
SC111-F019 — Emoji used as sole control label without accessible name
SC111-F020 — Generated pseudo-element icon conveys state without text
Backup job
SC111-F021 — A responsive picture with no alt on its img
SC111-F022 — A CSS-drawn graphic declared role="img" with no name
SC111-F023 — A figure whose caption is not attached to it
Revenue by quarter
SC111-F024 — An image repeating the text beside it
Northwind Utilities
SC111-F025 — An svg title nested where it does not name the graphic
SC111-F026 — An embed element with no accessible name
SC111-F027 — An alt attribute holding only a space
SC111-F028 — A video poster carrying the only instruction
SC111-F029 — Alt text pointing at a table that is not there
SC111-F030 — An alternative that drops what the colours carried
SC111-F031 — An alternative left behind when the image is swapped
SC111-F032 — Unicode look-alike characters used as words
Applications close on 𝟯𝟬 𝗝𝘂𝗻𝗲.
SC111-F033 — A decorative image put back into the tree by a second name
Recycling rates rose again this year. Collections continue as normal.
1.2.1 Audio-only and Video-only (Prerecorded) Level A — 10 scenarios
SC121-F001 — Prerecorded audio has no transcript
SC121-F002 — Silent video labelled only "Video"
Video
SC121-F003 — Transcript link resolves to nothing
SC121-F004 — Prerecorded video-only has no transcript
SC121-F005 — The transcript is a picture of text
SC121-F006 — Media embedded in a frame with no alternative in the page
SC121-F007 — The transcript is only available as a file
SC121-F008 — A transcript that attributes nothing
Transcript
The consultation closes on 30 June.
And will the findings be published?
Yes, in the autumn report.
SC121-F009 — A transcript that stops partway
Transcript
Chair: The consultation closes on 30 June.
Chair: We will take questions now.
SC121-F010 — An alternative that skips the text in the picture
A silent animation shows a bin lorry arriving at a kerbside and collecting two containers.
1.2.2 Captions (Prerecorded) Level A — 10 scenarios
SC122-F001 — Synchronised media has no captions track
SC122-F002 — Captions track is declared but empty
SC122-F003 — Subtitles supplied where captions are required
SC122-F004 — The captions track is in a different language from the audio
SC122-F005 — A captions track present but never enabled
SC122-F006 — Captions rendered into the video picture
SC122-F007 — Captions carrying dialogue only
SC122-F008 — Cues positioned over the text they must not hide
Call 0300 123 4567…and the number is on screen now.
SC122-F010 — Subtitles offered as a download
SC122-F011 — Uncaptioned media relying on an undeclared exception
How to apply for a permit
Complete the form, attach proof of address and pay the fee.
1.2.3 Audio Description or Media Alternative (Prerecorded) Level A — 5 scenarios
SC123-F001 — Neither audio description nor media alternative
SC123-F002 — An audio description track that carries no cues
SC123-F003 — Captions supplied where description is needed
SC123-F004 — A descriptions track carrying the caption text
SC123-F005 — An alternative that summarises rather than replaces
About this video
A short film about the recycling centre.
1.2.4 Captions (Live) Level AA — 4 scenarios
SC124-F001 — Live stream has no captions
Live: Council meeting
SC124-F002 — Live captions exist but are not part of the player
Captions are available in the separate captions window.
SC124-F003 — Automatic live captions published without correction
council tacks buddy meeting will resume at to thirty
SC124-F004 — Captions promised for the recording, not the broadcast
Live: Council meeting. A captioned recording will be published within five working days.
1.2.5 Audio Description (Prerecorded) Level AA — 3 scenarios
SC125-F001 — Transcript provided but no audio description
Transcript. Narrator: revenue rose twelve per cent across all regions this quarter.
SC125-F002 — A described version exists but is not linked
A described version exists on our media portal.
SC125-F003 — A description track that leaves the silent gaps empty
1.3.1 Info and Relationships Level A — 51 scenarios
SC131-F001 — Visual heading is a div
Payment history
Your last six payments are listed below.
SC131-F002 — Bold text used as heading without heading markup
Eligibility
Applicants must be resident for twelve months.
SC131-F003 — List visually formatted with line breaks
Bring with you:
— passport
— proof of address
— recent payslip
SC131-F004 — Table headers use td instead of th
| Month | Units |
| March | 412 |
| April | 388 |
SC131-F005 — Form input lacks programmatic label
Meter reading
SC131-F006 — Required state conveyed visually only
SC131-F007 — Field grouping lacks fieldset/legend
Contact preference
SC131-F008 — Table caption is only visual text
Meter readings 2026
| Month | Units |
|---|---|
| March | 412 |
SC131-F009 — Definition list relationships not marked up
Standing charge — a fixed daily amount.
Unit rate — the price per kilowatt hour.
SC131-F010 — Landmark region has no programmatic structure
Related services
Moving homeSC131-F011 — ARIA relationship points to missing ID
SC131-F012 — Grid headers are not associated
| Peak | Off-peak | |
| March | 210 | 202 |
SC131-F013 — Footnote relationship is visual only
Charges rose in April.1
1 Excludes standing charges.
SC131-F014 — Reading group relies on indentation only
Region: North
Leeds
York
SC131-F015 — Form instructions not associated with field
Use DD/MM/YYYY
SC131-F016 — Heading role removed with role=presentation
Direct debit
Collected on the fifth of each month.
SC131-F017 — List semantics removed with role=presentation
- Passport
- Payslip
SC131-F018 — Table header scope is incorrect
| Month | Units |
|---|---|
| March | 412 |
SC131-F019 — Nested list hierarchy flattened in DOM
- Accounts
- Billing
- Usage
SC131-F020 — Visual label differs from programmatic relationship
SC131-F021 — Spanned cells leave data cells with no header
| Region | 2026 | |
|---|---|---|
| North | 412 | 388 |
SC131-F022 — A data table declared role="presentation"
| Month | Units |
|---|---|
| March | 412 |
SC131-F023 — A layout table declaring header relationships
| Logo | Navigation |
|---|---|
| Billing |
SC131-F024 — A sequence whose order matters marked as unordered
Follow these steps in order:
- Enter your meter serial number
- Enter the reading
- Confirm and submit
SC131-F025 — Emphasis conveyed by font weight alone
Do not submit a reading before the meter has been installed.
SC131-F026 — aria-level on an element that is not a heading
Direct debit
Collected on the fifth.
SC131-F027 — A postal address structured only by line breaks
Send correspondence to:
Northwind Utilities
14 Beckett Row
Leeds LS1 4AP
SC131-F028 — A quotation indicated only by punctuation
The ombudsman wrote: "Suppliers must respond within eight weeks." That deadline is binding.
SC131-F029 — A single choice split across two fieldsets
SC131-F030 — The only naming text attached as a description
Meter reading
SC131-F031 — Heading structure buried inside a control
SC131-F032 — Table structure explained with the obsolete summary attribute
| Month | Units |
|---|---|
| March | 412 |
SC131-F033 — A numbered list generated entirely by CSS counters
Enter your meter serial
Enter the reading
Confirm and submit
SC131-F034 — A multi-level table with no scope and no headers
| 2025 | 2026 | |
|---|---|---|
| Peak | Off-peak | Peak |
| North | 210 | 202 |
SC131-F035 — A fieldset grouping controls with no legend
SC131-F036 — A definition list holding controls
- Filters
- Sort
SC131-F037 — A heading level jumped in the outline
Council tax
Paying by direct debit
Instalments are taken on the first working day.
SC131-F038 — A header cell that names nothing
| Peak | Off-peak | |
|---|---|---|
| March | 210 | 202 |
SC131-F039 — Two navigation landmarks with no names
SC131-F040 — Select groups drawn as disabled options
SC131-F041 — Columns aligned inside a pre block
Month Peak Off-peak March 210 202 April 198 187
SC131-F042 — Accordion triggers that are not headings
Instalments are taken on the first working day.
Ask at least ten days before the next payment.
SC131-F043 — A tree whose level exists only in padding
- Waste
- Bin collection
- Bulky waste
SC131-F044 — A headers reference resolving outside its table
| Peak | Off-peak |
|---|---|
| 210 | 202 |
| Month | Units |
|---|---|
| March | 184 |
SC131-F045 — A sorted column marked only by an arrow
| April | 198 |
| March | 210 |
SC131-F046 — Paragraph boundaries drawn with double breaks
Council tax pays for waste collection, street lighting and local roads.
Bills are issued each March and instalments run from April to January.
You can change your instalment date once a year.
SC131-F047 — A detail row with no link to its summary row
| Bin collection | |
| Collected on Tuesdays from the kerbside. | |
SC131-F048 — A heading placed after its section
Instalments are taken on the first working day of each month from April to January.
Paying by direct debit
Bulky waste collections are booked online.
Bulky waste
SC131-F049 — A tab panel related to its tab by position only
Your balance is £84.20.
SC131-F050 — Matrix controls relying on table headers for their names
| Agree | Disagree | |
|---|---|---|
| The service was easy to use | ||
| Staff were helpful |
SC131-F051 — A header cell that heads nothing
| Month | Units | Notes |
|---|---|---|
| March | 210 | |
| April | 198 |
1.3.2 Meaningful Sequence Level A — 10 scenarios
SC132-F001 — CSS reverses the reading order of a step list
Step 3: confirm
Step 2: review
Step 1: enter details
SC132-F002 — Absolute positioning displaces reading order
Read this second
Read this first
SC132-F003 — The CSS order property moves content away from DOM order
Step 1: enter details
Step 2: review
Step 3: confirm
SC132-F004 — Explicit grid placement moves content away from DOM order
Step 1: enter details
Step 2: review
Step 3: confirm
SC132-F005 — A float pulls later content above earlier content
SC132-F006 — A right-to-left direction on left-to-right text
Step one. Enter your account number. Then confirm the amount.
SC132-F007 — A warning word injected by CSS
this payment cannot be reversed once submitted.
SC132-F008 — A layout table whose columns are the pairs
| Name | Date |
| Bin collection | 3 April |
SC132-F009 — Hidden slides still read in sequence
SC132-F010 — Letter spacing typed as spaces between letters
Applications are now C L O S E D for this year.
1.3.3 Sensory Characteristics Level A — 5 scenarios
SC133-F001 — Instruction identifies a control by shape and position
Press the round button on the right to continue.
SC133-F002 — Instruction identifies fields by colour
Complete the fields shown in red.
SC133-F003 — An instruction identifying a control by its size
Press the large button to confirm.
SC133-F004 — An instruction that depends on hearing a sound
Continue when you hear the confirmation tone.
SC133-F005 — A glyph standing for a status with no text
| Service | Status |
|---|---|
| Bin collection | |
| Bulky waste |
1.3.4 Orientation Level AA — 2 scenarios
SC134-F001 — Content is locked to a single orientation
Rotate your device to portrait to use this form.
SC134-F002 — Content replaced by a request to rotate the device
Please rotate your device to landscape to use this service.
1.3.5 Identify Input Purpose Level AA — 8 scenarios
SC135-F001 — Field with a known purpose has no autocomplete token
SC135-F002 — Autocomplete token does not match the field purpose
SC135-F003 — autocomplete="off" on a field collecting the user's own data
SC135-F004 — The purpose token placed on a wrapper instead of the field
SC135-F005 — One address split across two sections
SC135-F006 — A token on a control that cannot carry it
SC135-F007 — A whole-name token on a part-of-name field
SC135-F008 — Two fields claiming one purpose
1.4.1 Use of Color Level A — 7 scenarios
SC141-F001 — Invoice status conveyed by colour alone
- Invoice 4471
- Invoice 4472
SC141-F002 — In-text link distinguished by colour alone
Charges are set out in the current tariff and reviewed annually.
SC141-F003 — Required fields shown by label colour
SC141-F004 — Chart series identified by a colour key
Recycling Landfill
SC141-F005 — The current page shown by colour alone
SC141-F006 — A colour-distinguished link with no additional cue
Charges are listed in the annual tariff for each service.
SC141-F007 — A field in error shown only by border colour
1.4.2 Audio Control Level A — 1 scenario
SC142-F001 — Audio autoplays for longer than three seconds with no control
Background narration starts automatically.
1.4.3 Contrast (Minimum) Level AA — 31 scenarios
SC143-F001 — Normal text contrast below 4.5:1
Quarterly results are published on the fifth working day.
SC143-F002 — Normal text at the 4.5:1 boundary
Quarterly results are published on the fifth working day.
SC143-F003 — Large text contrast below 3:1
Quarterly results
SC143-F004 — Large text at the 3:1 boundary
Quarterly results
SC143-F005 — Placeholder text below minimum contrast
SC143-F006 — Link text below contrast requirement
See the refund policy for details.
SC143-F007 — Button text below contrast requirement
SC143-F008 — Input text below contrast requirement
SC143-F009 — Text over gradient has a low-contrast region
Rates change on the first of each month.
SC143-F010 — Text over image has a low-contrast region
Photography by the estates team.
SC143-F011 — Visited link text has insufficient contrast
Previously read: annual report
SC143-F012 — Operable control styled as disabled has low text contrast
SC143-F013 — Small footer text has insufficient contrast
SC143-F014 — Error message text has insufficient contrast
Enter a reference in the form AB-0000.
SC143-F015 — Selected tab text has insufficient contrast
OverviewHistory
SC143-F016 — Tooltip text has insufficient contrast
Premium Charged monthly
SC143-F017 — Text in a modal has insufficient contrast
Cancel this policy?
SC143-F018 — Text in a toast has insufficient contrast
Draft saved
SC143-F019 — Text inside SVG has insufficient contrast
SC143-F020 — A theme state creates insufficient contrast
Night mode summary
SC143-F021 — Text whose effective background is a translucent layer
Rates change on the first.
SC143-F022 — Text relying on a shadow rather than its own contrast
Your meter is due for a reading.
SC143-F023 — An operable select greyed to look disabled
SC143-F024 — A hint colour that fails while the value colour passes
SC143-F025 — The selected row of an open listbox
- Bin collection
- Bulky waste
SC143-F026 — A count badge on an accent fill
SC143-F027 — Body text on an alternate row fill
| March |
| April |
SC143-F028 — Text whose composited colour fails and declared colour passes
Charges are reviewed each April and published on the tariff page.
SC143-F029 — An author-set selection highlight below the minimum
Select this sentence to see the highlight the page defines.
SC143-F030 — Bold text under 18.66 pixels held to the large-text ratio
Charges are reviewed each April
SC143-F031 — A text colour with no background specified
Charges are reviewed each April and published on the tariff page.
1.4.4 Resize Text Level AA — 9 scenarios
SC144-F001 — Text is clipped by a fixed-height container
SC144-F002 — Zoom disabled by the viewport declaration
This block declares the viewport policy under test.
SC144-F003 — Text sized in viewport units ignores the text-size setting
Charges are reviewed each April and published on the tariff page.
SC144-F004 — A table cell with a fixed height clips its text
SC144-F005 — A button sized to its current label clips a longer one
SC144-F006 — Text in an SVG with no viewBox
SC144-F007 — A pixel font size pinned with !important
Charges are reviewed each April and published on the tariff page.
SC144-F008 — Text painted into a canvas bitmap
SC144-F009 — A field pinned to a size the page text does not share
Enter the number shown on your bill.
1.4.5 Images of Text Level AA — 5 scenarios
SC145-F001 — A heading is rendered as an image of text
SC145-F002 — Menu items rendered as word-images
SC145-F003 — A submit button labelled with an image
SC145-F004 — An image of text that the theme control does not reach
SC145-F005 — A logotype carrying a sentence
1.4.10 Reflow Level AA — 10 scenarios
SC1410-F001 — Fixed-width panel prevents reflow at 320px
This panel is 640px wide and does not reflow below 320 CSS pixels.
SC1410-F002 — A wide table with no wrapper scrolls the whole page
| Month | Peak | Off-peak | Standing | Total |
|---|---|---|---|---|
| March | 210 | 202 | 9 | 421 |
SC1410-F003 — A min-width floor holds content wider than the viewport
This panel declares a minimum width of 560 pixels.
SC1410-F004 — Positioned content overlaps when space shrinks
Your current balance is £84.20
Due 5 April
SC1410-F005 — A fixed-width sidebar leaves no room for the content
Filters
Invoice list
SC1410-F006 — A pre block with no wrapping
Reference ABC-2024-000198 was received on 3 April and assigned to the waste services team on 4 April.
SC1410-F007 — A frame with a pixel width
SC1410-F008 — A narrow layout that fits by deleting columns
| Month | Total |
|---|---|
| March | 421 |
SC1410-F009 — A narrow layout that fits by removing a control
SC1410-F010 — Vertically written content past the 256 pixel allowance
Charges are reviewed each April and published on the tariff page for every service the council provides.
1.4.11 Non-text Contrast Level AA — 31 scenarios
SC1411-F001 — Input border below 3:1
SC1411-F002 — Button boundary below 3:1
Charges are reviewed each April. for this year's rates.
SC1411-F003 — Focus indicator below 3:1
SC1411-F004 — Checkbox visual state below 3:1
Paperless billing
SC1411-F005 — Radio visual state below 3:1
Monthly
SC1411-F006 — Selected tab indicator below 3:1
Usage
SC1411-F007 — Chart data series lacks adjacent contrast
SC1411-F008 — Icon required to understand a control is below 3:1
Account 8841
SC1411-F009 — Slider track lacks contrast
SC1411-F010 — Toggle state indicator lacks contrast
Alerts on
SC1411-F011 — Error outline lacks contrast
Enter a valid address
SC1411-F012 — Required graphical symbol lacks contrast
Complete every field marked with a star.
SC1411-F013 — Menu selection indicator lacks contrast
OverviewBillingUsage
SC1411-F014 — Tree expand icon lacks contrast
Accounts
SC1411-F015 — Progress indicator lacks contrast
SC1411-F016 — Custom scrollbar thumb lacks contrast
Custom scroll thumb
SC1411-F017 — Drag handle lacks contrast
Row 3
SC1411-F018 — Pagination current-page indicator lacks contrast
SC1411-F019 — Disclosure chevron lacks contrast
SC1411-F020 — Status icon lacks contrast
Payment overdue
SC1411-F021 — Axis lines needed to read a chart
SC1411-F022 — A field whose only boundary is an underline
SC1411-F023 — The arrow showing which column a table is sorted by
| Month |
|---|
| March |
SC1411-F024 — A field bounded only by a faint shadow
SC1411-F025 — A control outlined over photographic pixels
SC1411-F026 — A native control painted from a low-contrast accent
SC1411-F027 — A required graphic declared decorative
Your application is at the stage marked below.
SC1411-F028 — A bitmap graphic whose marks fail against their ground
SC1411-F029 — A glyph used as an icon, held to the text threshold
SC1411-F030 — A brand exemption claimed for a colour the author chose
SC1411-F031 — Touching chart segments that do not contrast with each other
1.4.12 Text Spacing Level AA — 5 scenarios
SC1412-F001 — Content clips when text-spacing overrides are applied
SC1412-F002 — Letter spacing pinned with !important
Charges are reviewed each April.
SC1412-F003 — A container clips when word spacing is increased
SC1412-F004 — Paragraph spacing forced to zero and locked
Charges are reviewed each April.
Readings are due monthly.
SC1412-F005 — Adjusted spacing pushing text over its neighbour
Charges are reviewed each April
and published on the tariff page.
1.4.13 Content on Hover or Focus Level AA — 5 scenarios
SC1413-F001 — Hover content cannot be dismissed
TariffReviewed each April.
Your next reading is due on 3 April.
SC1413-F002 — Hover content disappears when the pointer moves onto it
Usage Measured daily.
SC1413-F003 — Hover content that disappears on a timer
Standing charge
SC1413-F004 — Additional content bound to hover alone
Charged monthly in arrears.
SC1413-F005 — Focus-triggered content that no key removes
Charged monthly in arrears.
2. Operable
2.1.1 Keyboard Level A — 41 scenarios
SC211-F001 — Clickable div cannot receive keyboard focus
Apply filter
SC211-F002 — Custom button ignores Enter and Space
Recalculate
SC211-F003 — Hover menu cannot be opened by keyboard
Account menu
SC211-F004 — Drag-only control has no keyboard operation
Drag to reorder
SC211-F005 — Canvas control has mouse-only interaction
SC211-F006 — Custom checkbox is mouse-only
Paperless
SC211-F007 — Custom radio group is mouse-only
Monthly
SC211-F008 — Slider cannot be operated by keyboard
SC211-F009 — Clickable image lacks keyboard handler
SC211-F010 — Context menu requires right-click only
Right-click for options
SC211-F011 — Carousel arrows are mouse-only
›
SC211-F012 — Date picker cells cannot be keyboard operated
| 14 |
SC211-F013 — Tooltip trigger is hover-only
Standing charge
SC211-F014 — Map zoom controls are pointer-only
+
SC211-F015 — File drop zone has no keyboard alternative
Drop files here
SC211-F016 — Custom select cannot be operated with keys
Choose a tariff
SC211-F017 — Tree widget cannot be navigated by keyboard
Accounts
SC211-F018 — Sortable table requires mouse drag
| Month |
|---|
SC211-F019 — Range selector requires pointer
Select date range
SC211-F020 — Game-like control requires mouse movement
Aim with the mouse
SC211-F021 — A scrolling region cannot be reached by keyboard
Clause 1. Supply begins on the agreed date.
Clause 2. Charges are reviewed each April.
Clause 3. Either party may end the agreement with 28 days notice.
Clause 4. Disputes go to the ombudsman.
SC211-F022 — An interactive control removed from the tab order
SC211-F023 — A submenu opens only while the pointer hovers
Account
SC211-F024 — Autofocus places focus past the start of the content
SC211-F025 — Every item in a composite widget removed from the tab order
OverviewUsage
SC211-F026 — A listbox offering no keyboard model between options
Standard
Economy 7
SC211-F027 — A key handler attached where focus never lands
Recalculate
SC211-F028 — A whole block made clickable with no control inside
Direct debit
Collected on the fifth of each month.
SC211-F029 — A modal that cannot be dismissed from the keyboard
Cancel this policy?
SC211-F030 — A control activated only by double click
Open case record
SC211-F031 — A replacement media player with no focusable controls
Play Mute
SC211-F032 — A visible control inside an inert subtree
Renew your permit before 30 April.
SC211-F033 — A scripted button that ignores Space
Renew permit
SC211-F034 — A dialog with no close control
Renew this permit for another year?
SC211-F035 — A windowed list whose rows are not in the DOM
SC211-F036 — Further results requested only by scrolling
- Reference 000198
- Reference 000199
SC211-F037 — A suggestion list only the pointer can enter
- Bin collection
- Bulky waste
SC211-F038 — A file control hidden out of the tab order
SC211-F039 — A menu that closes as focus reaches its items
- Rename
- Delete
SC211-F040 — A gallery scrolled only by the wheel
SC211-F041 — A control that blurs itself the moment it is focused
2.1.2 No Keyboard Trap Level A — 4 scenarios
SC212-F003 — A toolbar that suppresses Tab and wraps
SC212-F004 — A frame that pulls focus back on blur
SC212-F005 — An editor that consumes Tab with no escape
function total(a, b) {
SC212-F006 — A focus guard left running after its dialog is gone
2.1.4 Character Key Shortcuts Level A — 2 scenarios
SC214-F001 — Single-character shortcut cannot be turned off or remapped
Press S to search. This shortcut is always on.
SC214-F002 — A shortcut guard that only knows native fields
Notes
2.2.1 Timing Adjustable Level A — 8 scenarios
SC221-F001 — A time limit cannot be turned off, adjusted or extended
You have 60 seconds to complete this form before it resets.
SC221-F002 — An automatic redirect cannot be stopped
Returning to your dashboard in 8 seconds.
SC221-F003 — The timeout warning leaves too little time to react
Your session ends in 5 seconds.
SC221-F004 — A timed reload declared in the document
This page reloads every 30 seconds.
SC221-F005 — A timer that discards what has been typed
SC221-F006 — A verification code that expires too quickly
Your code expires in 20 seconds.
SC221-F007 — A reference number removed before it can be read
Your appeal reference is ABC-2024-000198. Quote it in any correspondence.
SC221-F008 — A limit defended as essential where nothing requires it
Your delivery slot is held for 10 minutes. This limit is required for security and cannot be changed.
Tuesday 14 April, 9am to 1pm
2.2.2 Pause, Stop, Hide Level A — 9 scenarios
SC222-F001 — Automatically moving content cannot be paused
SC222-F002 — Auto-updating content cannot be paused
Queue position: 14
SC222-F003 — A carousel advances on a timer with no control
Offer 1 of 3: fixed tariff until 2028
SC222-F004 — Text blinks indefinitely
Act now
SC222-F005 — An automatic update that discards the reading position
Outage 1
Outage 2
Outage 3
Outage 4
SC222-F006 — A ticker that pauses only on hover
SC222-F007 — An animated image with no pausable mechanism
SC222-F008 — A pause control that freezes the animation only
Latest: two roads closed for resurfacing.
SC222-F009 — A looping background video with controls removed
2.4.1 Bypass Blocks Level A — 8 scenarios
SC241-F001 — No mechanism to bypass a repeated navigation block
Account overview
SC241-F002 — The skip link leads nowhere
Skip to main content
Account overview
SC241-F003 — Repeated blocks with neither a skip link nor landmarks
SC241-F004 — A skip link removed from the accessibility tree
SC241-F005 — A skip link whose target cannot take focus
Skip to content
Council tax
Instalments are taken on the first working day.
SC241-F006 — A skip link landing before the block
Skip to content
Council tax
SC241-F007 — A bypass link placed after the block it bypasses
Skip to content
Council tax
SC241-F008 — One skip link in front of several repeated blocks
Skip navigation
Your cases
2.4.2 Page Titled Level A — 6 scenarios
SC242-F001 — Page title is empty
This block declares the document title under test.
SC242-F002 — Page title does not describe the page
This block declares the document title under test.
SC242-F003 — The title names the site but not the page
This block declares the document title under test for the site-name family.
SC242-F004 — Every step of a process sharing one title
- Step 1: your details
- Step 2: your property
- Step 3: check and submit
SC242-F005 — A title whose distinguishing words come last
Report a pothole
SC242-F006 — An application that keeps its first title
Step 3 of 3: check and submit
2.4.3 Focus Order Level A — 14 scenarios
SC243-F001 — Positive tabindex imposes an illogical focus order
SC243-F002 — Focus order contradicts the visual order
SC243-F003 — A dialog opens without moving focus into it
Cancel this policy?
SC243-F004 — Content inserted ahead of the focused control
SC243-F005 — A dialog that discards focus when it closes
SC243-F006 — A delete control that removes what focus is on
- Bin collection
- Bulky waste
SC243-F007 — A dialog rendered away from its trigger
SC243-F008 — An action that throws focus to the top of the page
Top of page
4 results
SC243-F009 — A focus call that runs before its target is rendered
SC243-F010 — A modal whose background stays reachable
Background link one Background link two
Renew this permit for another year?
SC243-F011 — A collapsed panel whose controls still take focus
SC243-F012 — A conditional field reached before its condition
SC243-F013 — A widget whose only tab stop was deleted
SC243-F014 — A client-side navigation that manages no focus
Case 198
2.4.4 Link Purpose (In Context) Level A — 21 scenarios
SC244-F001 — Multiple "Read more" links have no context
SC244-F002 — Multiple "Click here" links have no context
To download your statement, click here.
SC244-F003 — Image link has empty accessible name
SC244-F004 — Icon-only link has no accessible name
SC244-F005 — URL text does not identify destination purpose
Details: https://example.org/p/9f2a?ref=42
SC244-F006 — Link text says Download without file context
SC244-F007 — More link is separated from its heading context
Moving home
SC244-F008 — ARIA label gives ambiguous link purpose
SC244-F009 — Linked image alt names the file, not the destination
SC244-F010 — Linked icon name is generic
SC244-F011 — Same link text leads to unrelated destinations
SC244-F012 — Adjacent text does not programmatically provide context
March invoice
SC244-F013 — Card link is named only "Open"
Direct debit
SC244-F014 — Table action links all say View without row association
| Invoice | Action |
|---|---|
| 4471 | View |
SC244-F015 — Pagination links are named only arrows
SC244-F016 — Document link omits document identity
SC244-F017 — External link icon is sole purpose cue
SC244-F018 — Breadcrumb link is unlabeled
SC244-F019 — Navigation logo link lacks home purpose
SC244-F020 — Link purpose depends only on visual position
SC244-F021 — Links named by file format and size
2.4.6 Headings and Labels Level AA — 7 scenarios
SC246-F001 — Heading does not describe its section
More
Standing charges are reviewed each April.
SC246-F002 — Label does not describe what to enter
SC246-F003 — Two sections share an identical heading
Details
Your tariff ends in April.
Details
Your meter was installed in 2019.
SC246-F004 — Two fields share an identical label
SC246-F005 — A section heading supplied as an unlabelled image
Your last six payments.
SC246-F006 — A label naming the input format rather than the content
SC246-F007 — A label overwritten by the error text
2.4.7 Focus Visible Level AA — 26 scenarios
SC247-F001 — Outline removed from links
SC247-F002 — Outline removed from buttons
SC247-F003 — Custom control has no focus style
Recalculate
SC247-F004 — Focus indicator matches the background
SC247-F005 — Focus indicator visible only on mouse hover
SC247-F006 — Focus style clipped by overflow
SC247-F007 — Focus indicator too subtle to perceive
SC247-F008 — Selected state mistaken for focus with no distinct focus
Usage
SC247-F009 — Focus indicator removed in a global override
SC247-F010 — Focus ring hidden behind adjacent element
SC247-F011 — Input focus indicated by placeholder disappearance only
SC247-F012 — Menu item focus has no visual change
SC247-F013 — Tab focus is invisible
Overview
SC247-F014 — Checkbox focus is invisible
SC247-F015 — Radio focus is invisible
SC247-F016 — Icon button focus is invisible
SC247-F017 — Skip link receives focus while remaining hidden
Skip to contentPage content follows.
SC247-F018 — Focus indicator transparent
SC247-F019 — Focus indicator appears outside clipped container
SC247-F020 — Focus style disabled by global :focus rule
SC247-F021 — An indicator bound to hover rather than focus
SC247-F022 — A focus indicator lost against the control border
SC247-F023 — A focus style gated behind a scripted class
SC247-F024 — An offset outline drawn past the clipping edge
SC247-F025 — An indicator that script-moved focus never matches
Results panel
SC247-F026 — A focus ring painted on the row rather than the control
Case 198
2.4.11 Focus Not Obscured (Minimum) Level AA — 5 scenarios
SC2411-F001 — A focused control is hidden behind a sticky header
SC2411-F002 — A focused control is covered by a fixed bottom banner
SC2411-F003 — A pinned first column covering the focused control
Service
SC2411-F004 — A scroll call that parks the control under the header
SC2411-F005 — A popover that covers the control that opened it
April 2026
2.5.1 Pointer Gestures Level A — 2 scenarios
SC251-F001 — A path-based gesture has no single-pointer alternative
Swipe left or right to change month.
SC251-F002 — A multipoint gesture with no single-pointer alternative
Pinch to zoom the meter photograph.
2.5.2 Pointer Cancellation Level A — 4 scenarios
SC252-F001 — A destructive action completes on the down event
SC252-F002 — The action completes on the raw up event with no chance to abort
SC252-F003 — An action that fires wherever the pointer is released
SC252-F004 — An action committed by a timer started on press
2.5.3 Label in Name Level A — 6 scenarios
SC253-F001 — The visible label is not contained in the accessible name
SC253-F002 — The accessible name contains only part of the visible label
SC253-F003 — The label words present in a different order
SC253-F004 — A visible label that exists only in CSS
SC253-F005 — A toggle whose name belongs to the other state
SC253-F006 — A labelling reference resolving to the target's own ARIA name
Delivery options
2.5.4 Motion Actuation Level A — 3 scenarios
SC254-F001 — A function is operable only by device motion
Shake the device to undo.
SC254-F002 — A function operable only by tilting the device
Tilt the device to scroll the meter list.
SC254-F003 — Motion response with no off switch
Shake the device to refresh your balance.
£84.20
2.5.7 Dragging Movements Level AA — 3 scenarios
SC257-F001 — Reordering requires a dragging movement
- Invoice 4471
- Invoice 4472
SC257-F002 — A slider adjustable only by dragging
SC257-F003 — A panel splitter with no other mechanism
Filters
Results
2.5.8 Target Size (Minimum) Level AA — 28 scenarios
SC258-F001 — Target is 16x16 with adjacent target too close
SC258-F002 — Two 20x20 icon buttons overlap 24px exclusion circles
SC258-F003 — Small checkbox custom target has insufficient spacing
SC258-F004 — Tiny carousel dots are crowded
SC258-F005 — Small pagination targets are crowded
SC258-F006 — Close icon target is under 24px and crowded
SC258-F007 — Toolbar icons are under 24px and crowded
SC258-F008 — Map controls are small and adjacent
SC258-F009 — Rating stars have undersized crowded targets
SC258-F010 — Calendar day controls are undersized and crowded
SC258-F011 — Tree expand controls are undersized and crowded
SC258-F012 — Table action icons are undersized and crowded
SC258-F013 — Stepper plus/minus controls are too small and close
SC258-F014 — Media controls are too small and close
SC258-F015 — Breadcrumb icon targets are too small and close
SC258-F016 — Chip remove buttons are too small and close
SC258-F017 — Mobile nav icons are too small and close
SC258-F018 — Color swatches are too small and close
SC258-F019 — Segmented controls have undersized targets
SC258-F020 — Floating mini-buttons are undersized and crowded
SC258-F021 — An undersized target with no neighbour at all
SC258-F022 — Two targets whose hit areas overlap
SC258-F023 — A target sized in viewport units falls below the minimum
SC258-F024 — A target whose padding is clipped away
SC258-F025 — A target sized in one dimension
SC258-F026 — A list of links each on its own line, undersized
SC258-F027 — An undersized control whose equivalent is absent
Filter results:
SC258-F028 — The user-agent exception claimed for an authored size
3. Understandable
3.1.1 Language of Page Level A — 3 scenarios
SC311-F001 — The page declares no language
SC311-F002 — The page declares an invalid language tag
SC311-F003 — A valid tag naming a language the page is not written in
Council tax
Instalments are taken on the first working day of each month from April to January. You can change your instalment date once a year.
3.1.2 Language of Parts Level AA — 6 scenarios
SC312-F001 — A foreign-language passage is not marked
The council describes this as nous vous prions de bien vouloir patienter before any action is taken.
SC312-F002 — A language declared over more text than it applies to
The council calls this nous vous prions de bien vouloir patienter before any action is taken.
SC312-F003 — A quoted passage in another language left unmarked
Der Kunde hat das Recht, den Vertrag innerhalb von vierzehn Tagen zu widerrufen.
SC312-F004 — A control named in another language
SC312-F005 — A lang attribute holding a language name
The notice ends veuillez agréer nos salutations distinguées.
SC312-F006 — A text alternative in another language
The plaque reads above the entrance.
3.2.1 On Focus Level A — 4 scenarios
SC321-F001 — Receiving focus changes the context
SC321-F002 — Focusing a field opens a dialog
Look on the front panel.
SC321-F003 — A form submitted by focus reaching its last field
SC321-F004 — Focus swapping out the surrounding content
Choose a service to see its opening hours.
3.2.2 On Input Level A — 8 scenarios
SC322-F001 — Changing a value changes the context
SC322-F002 — Toggling a checkbox submits the form
SC322-F003 — Choosing a radio navigates at once
SC322-F004 — A jump menu that fires on every option
SC322-F005 — A filter that deletes what focus is on
SC322-F006 — Code fields that move focus on each character
SC322-F007 — A late validation result that pulls focus back
SC322-F008 — The warning placed after the control it governs
Choosing a service takes you straight to that page.
3.3.1 Error Identification Level A — 13 scenarios
SC331-F001 — An input error is not identified in text
SC331-F002 — An error indicated only by an icon
SC331-F003 — An error summary that does not reach the fields
Surname is required. Postcode is required.
SC331-F004 — An error message beside a field but not attached to it
Enter eight characters.
SC331-F005 — An error message removed as focus leaves the field
Enter eight characters.
SC331-F006 — An error identified only by where the message sits
One field below needs attention.
SC331-F007 — An error message present while the control is valid
Error: surname is required.
SC331-F008 — A summary stating how many errors and naming none
SC331-F009 — An error marked on a correct field
SC331-F010 — Errors left to the browser bubble
SC331-F011 — A field marked invalid with no reason given
SC331-F012 — A date control that corrects the entry silently
SC331-F013 — A message that states neither the field nor the fault
3.3.2 Labels or Instructions Level A — 31 scenarios
SC332-F001 — Text input has no label
SC332-F002 — Textarea has no label
SC332-F003 — Select has no label
SC332-F004 — Checkbox group has no instruction
SC332-F005 — Required format is not explained
SC332-F006 — Required field has no indication
SC332-F007 — Date format instruction missing
SC332-F008 — Password requirements not provided
SC332-F009 — Radio group has no group label
SC332-F010 — File upload restrictions not described
SC332-F011 — Search input relies only on placeholder
SC332-F012 — A label is associated with the wrong control
SC332-F013 — Instruction exists visually but is not associated
Eight characters, for example AB-004471.
SC332-F014 — Required symbol has no explanation
SC332-F015 — Units are omitted from numeric input label
SC332-F016 — Multi-part name fields are ambiguously labeled
SC332-F017 — Address fields have generic labels
SC332-F018 — Autocomplete field has no purpose instruction
SC332-F019 — Custom input has no accessible label
SC332-F020 — A label removed from rendering, taking the name with it
SC332-F021 — A visible label hidden from assistive technology
SC332-F022 — Format guidance reachable only by hovering an icon
SC332-F023 — Units of measure carried only by the placeholder
SC332-F024 — A form-wide rule attached to nothing
All dates must use DD/MM/YYYY.
SC332-F025 — A field label supplied as an unlabelled image
SC332-F026 — The format rule shown only after an error
SC332-F027 — A field that truncates at an unstated limit
SC332-F028 — Guidance left behind on a previous step
Step 3 of 3: evidence
SC332-F029 — A field that became required with no change
SC332-F030 — A disabled submit with unstated conditions
SC332-F031 — Guidance the field itself will reject
Enter the 3-digit code from the back of your card, for example 123.
3.3.3 Error Suggestion Level AA — 6 scenarios
SC333-F001 — An error message suggests no correction
Invalid date.
SC333-F002 — The suggestion describes a different field
Enter a valid email address, such as name@example.com.
SC333-F003 — The suggestion appears only on hover
Try 28/02/2001.
SC333-F004 — The correction is only available on another page
Invalid. See the help page for the format.
SC333-F005 — The message restates the rule without suggesting a value
Postcode is not in the correct format.
SC333-F006 — A correction the field would reject
Did you mean AB123 CD?
3.3.4 Error Prevention (Legal, Financial, Data) Level AA — 8 scenarios
SC334-F001 — A financial submission offers no review or reversal
SC334-F002 — A binding agreement with no confirmation step
SC334-F003 — Data deleted with no confirmation and no reversal
SC334-F004 — A review step that cannot be acted on
SC334-F005 — An undo window that closes mid-task
Your claim has been withdrawn.
Undo is available for 20 seconds. Three further confirmations remain.
SC334-F006 — A confirmation that does not say what it confirms
Are you sure?
SC334-F007 — Enter in a field committing a payment
SC334-F008 — A commitment accepted without checking the data
3.3.7 Redundant Entry Level A — 6 scenarios
SC337-F001 — Information already supplied is requested again
SC337-F002 — Information the service already displays is asked for again
Signed in as Priya Raman, account 40021188.
SC337-F003 — A timeout that discards answers already given
SC337-F004 — One answer asked for twice in two shapes
SC337-F005 — A second address block with no way to reuse the first
SC337-F006 — A step that is empty on return
3.3.8 Accessible Authentication (Minimum) Level AA — 7 scenarios
SC338-F001 — A transcription test has no alternative
SC338-F002 — A puzzle used as an authentication step
Select every square containing a traffic light.
SC338-F003 — A password field that blocks paste and autofill
SC338-F004 — A reset step gated on remembering a personal fact
SC338-F005 — Autofill suppressed on the sign-in fields
SC338-F006 — Two modalities testing the same function
SC338-F007 — A verification code hidden on the screen where it is entered
Enter the six-digit code shown on the previous screen.
4. Robust
4.1.2 Name, Role, Value Level A — 60 scenarios
SC412-F001 — Custom button has no role
Recalculate
SC412-F002 — Custom checkbox has no state
SC412-F003 — Custom switch has no accessible name
SC412-F004 — Custom slider exposes no value
SC412-F005 — ARIA control has invalid role
Submit reading
SC412-F006 — Combobox does not expose expanded state
Standard
SC412-F007 — Tab does not expose selected state
Overview
SC412-F008 — Disclosure button does not expose expanded state
Collected on the fifth of each month.
SC412-F009 — Progressbar lacks current value
SC412-F010 — Spinbutton lacks current value
3
SC412-F011 — Tree item lacks expanded state
- Accounts
- Billing
- Usage
SC412-F012 — Menu item checkbox lacks checked state
Show paid invoices
SC412-F013 — Dialog lacks accessible name
Cancel this policy?
SC412-F014 — Icon button lacks accessible name
SC412-F015 — Custom link has no link role
Refund policy
SC412-F016 — Listbox option lacks selected state
Economy 7
SC412-F017 — Toggle button lacks pressed state
SC412-F018 — Input accessible name is empty
SC412-F019 — ARIA referenced label ID does not exist
SC412-F020 — Widget state changes visually but not programmatically
SC412-F021 — A focusable control hidden from assistive technology
SC412-F022 — Two naming mechanisms declaring different names
Download March statement
SC412-F023 — role="presentation" on a control that can be focused
SC412-F024 — A duplicated id makes an ARIA reference ambiguous
Start dateEnd date
SC412-F025 — A listbox owning no options
Standard
Economy 7
SC412-F026 — A tablist owning no tabs
SC412-F027 — A radiogroup owning no radios
MonthlyQuarterly
SC412-F028 — aria-activedescendant naming a missing element
Standard
Economy 7
SC412-F029 — aria-owns naming a missing element
Billing
SC412-F030 — An abstract ARIA role applied to an element
Recalculate
SC412-F031 — A control announced as disabled while remaining operable
SC412-F032 — A field announced read-only while still accepting input
SC412-F033 — A range widget whose text value contradicts its number
SC412-F034 — One interactive control nested inside another
SC412-F035 — aria-expanded on the panel instead of the button
Monday to Friday, 8am to 4pm.
SC412-F036 — Two widgets claiming one element
- Bulky waste
SC412-F037 — An ARIA state disagreeing with its control
SC412-F038 — A name on an element that can carry none
£142.60 due on 1 May
SC412-F039 — A widget's required children removed from the tree
- Bin collection
- Bulky waste
SC412-F040 — A value outside its own bounds
SC412-F041 — An enumerated state outside its token set
SC412-F042 — Tabs belonging to no tablist
£84.20
SC412-F043 — A toggle state on a link
SC412-F044 — An error reference resolving to an unrendered element
SC412-F045 — A disclosure whose native state is replaced by a weaker role
Opening hours
Monday to Friday, 8am to 4pm.
SC412-F046 — A popup type that does not match what opens
Choose an action.
SC412-F047 — An image role over the controls inside it
SC412-F048 — Set positions that disagree with the list
- Bin collection
- Bulky waste
- Garden waste
SC412-F049 — A range widget whose exposed value never changes
Quantity
1
SC412-F050 — An expandable state on an item with nothing to expand
- Bin collection
- Bulky waste
SC412-F051 — A multi-select listbox announced as single-select
- Bin collection
- Bulky waste
- Garden waste
SC412-F052 — A validity state left true after the fix
SC412-F053 — A vertical slider left at the horizontal default
SC412-F054 — The application role applied over document content
Paying by direct debit
- Instalments run from April to January.
- Payments are taken on the first working day.
SC412-F055 — An active-descendant relationship that can never apply
- Bin collection
- Bulky waste
SC412-F056 — A named group whose individual inputs have no names
SC412-F057 — A range widget hiding its real scale behind the role defaults
Overall rating
1 2 3 4 5
SC412-F058 — A name computed through a label containing a form control
Deliver on each week
SC412-F059 — An empty reference consuming the description slot
SC412-F060 — A misspelled ARIA attribute the engine discards
Paperless billing
4.1.3 Status Messages Level AA — 18 scenarios
SC413-F001 — A results count is not exposed as a status message
3 results found.
SC413-F002 — A validation summary is not announced
2 fields need attention.
SC413-F003 — A loading state is not exposed programmatically
Loading your statements…
SC413-F004 — A result count updated with no live region
14 matching invoices
SC413-F005 — A status delivered by moving focus to it
Draft saved
SC413-F006 — A live region created at the same moment as its message
Reading accepted
SC413-F007 — A status region declaring aria-live="off"
Reading accepted
SC413-F008 — A region left marked busy after its content arrives
14 matching invoices
SC413-F009 — A status announcing only the fragment that changed
Showing 14 of 220 invoices
SC413-F010 — A status overwritten inside the announcement window
All changes saved
SC413-F011 — A region deleted as it receives its text
SC413-F012 — A status region outside the rendered tree
SC413-F013 — A live region ignoring the change it receives
0 results
SC413-F014 — An alert downgraded by an explicit live value
Your session will end in one minute.
SC413-F015 — A result count written only to the title
- Reference 000198
SC413-F016 — A visible status region removed from the tree
SC413-F017 — A keyboard reorder whose outcome is reported nowhere
- Bin collection
- Bulky waste
SC413-F018 — A status rewritten with the text it already holds
Draft saved
Not included on this page
These canonical families remain in the isolated corpus. They are excluded because a single document cannot express them honestly, not because they are hard to detect.
SC122-F009 — A captions track whose file is not published (not on this page)
Document-global side effect: the mechanism is a captions file that does not resolve, so on a shared page it produces a failed request and a console error attributed to the document rather than to the specimen. Canonical fixture: sc-1-2-2.html.
SC212-F001 — Tab is blocked inside a dialog (not on this page)
Keyboard trap: Tab is cancelled while the control holds focus, halting sequential traversal before the remaining fixtures are reached. Canonical fixture: sc-2-1-2.html.
SC212-F002 — A field returns focus to itself on blur (not on this page)
Keyboard trap: onblur returns focus to the field, so once focused no other element on the document can ever receive focus. Including it would make every other focus-dependent scenario on this page unevaluable. Canonical fixture: sc-2-1-2.html.
SC231-F001 — Content flashes more than three times per second (not on this page)
Photosensitive-seizure hazard: the flashing area now exceeds the 2.3.1 small-area exemption, which is what makes the fixture a genuine failure and also makes it hazardous at scale. Canonical fixture: sc-2-3-1.html.
SC231-F002 — A saturated red flash above the red threshold (not on this page)
Photosensitive-seizure hazard: saturated red flashing above the small-area exemption. Red flash carries the highest seizure risk of any fixture in the corpus. Canonical fixture: sc-2-3-1.html.
SC245-F001 — Only one way is provided to locate pages (not on this page)
GUIDED_PAGE_SET: "more than one way to locate a page" is a property of a set of pages. A single document cannot exhibit it. Canonical fixture: sc-2-4-5.html.
SC323-F001 — Repeated navigation appears in a different order (not on this page)
GUIDED_PAGE_SET: requires two pages presenting navigation differently. Canonical fixture: sc-3-2-3.html.
SC324-F001 — The same function is named differently (not on this page)
GUIDED_PAGE_SET: requires the same function named differently on two pages. Canonical fixture: sc-3-2-4.html.
SC326-F001 — Help appears in a different place across pages (not on this page)
GUIDED_PAGE_SET: requires help appearing in different places across pages. Canonical fixture: sc-3-2-6.html.