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fix: update links to WCAG21 resources (#776)

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jkodu committed Aug 21, 2019
1 parent 71af6a0 commit e87fa0696963a2a7f950b35712cc93d9afb56dd7
Showing with 103 additions and 115 deletions.
  1. +2 −2 _rules/aria-attr-valid-5f99a7.md
  2. +4 −5 _rules/aria-hidden-focus-6cfa84.md
  3. +1 −2 _rules/aria-state-or-property-allowed-5c01ea.md
  4. +1 −1 _rules/aria-state-or-property-has-valid-value-6a7281.md
  5. +1 −1 _rules/audio-as-media-alternative-afb423.md
  6. +2 −2 _rules/audio-have-transcript-2eb176.md
  7. +2 −2 _rules/audio-only-text-alternative-e7aa44.md
  8. +3 −3 _rules/autocomplete-valid-73f2c2.md
  9. +3 −4 _rules/button-has-name-97a4e1.md
  10. +2 −2 _rules/form-field-has-name-e086e5.md
  11. +4 −5 _rules/html-has-lang-b5c3f8.md
  12. +4 −5 _rules/html-lang-valid-bf051a.md
  13. +4 −4 _rules/html-xml-lang-match-5b7ae0.md
  14. +1 −1 _rules/iframe-has-name-cae760.md
  15. +8 −8 _rules/image-has-name-23a2a8.md
  16. +1 −1 _rules/label-content-name-mismatch-2ee8b8.md
  17. +3 −4 _rules/lang-valid-de46e4.md
  18. +5 −5 _rules/link-has-name-c487ae.md
  19. +1 −1 _rules/meta-refresh-bc659a.md
  20. +3 −4 _rules/page-has-title-2779a5.md
  21. +1 −1 _rules/role-has-required-states-and-properties-4e8ab6.md
  22. +1 −1 _rules/unique-attrs-e6952f.md
  23. +3 −3 _rules/unique-id-3ea0c8.md
  24. +4 −4 _rules/video-audio-described-1ea59c.md
  25. +4 −4 _rules/video-description-track-f196ce.md
  26. +4 −4 _rules/video-has-audio-alternative-eac66b.md
  27. +4 −4 _rules/video-has-captions-f51b46.md
  28. +4 −4 _rules/video-media-alternative-ab4d13.md
  29. +2 −2 _rules/video-only-alternative-c3232f.md
  30. +2 −2 _rules/video-only-audio-alternative-d7ba54.md
  31. +2 −2 _rules/video-only-description-track-ac7dc6.md
  32. +2 −2 _rules/video-only-element-transcript-ee13b5.md
  33. +1 −1 _rules/video-only-media-alternative-fd26cf.md
  34. +5 −5 _rules/video-transcript-1a02b0.md
  35. +4 −4 _rules/video-with-audio-has-audio-description-1ec09b.md
  36. +5 −10 _rules/video-with-audio-has-description-or-transcript-c5a4ea.md
@@ -31,8 +31,8 @@ There are no major accessibility support issues known for this rule.

- [ARIA in HTML](https://www.w3.org/TR/html-aria/#index-aria-global) (work in progress)
- [WAI ARIA Supported States and Properties](http://www.w3.org/TR/wai-aria/#states_and_properties)
- [G108: Using markup features to expose the name and role](http://www.w3.org/TR/WCAG20-TECHS/G108)
- [WCAG 2.0 - Name, Role, Value: Understanding SC 4.1.2](https://www.w3.org/TR/UNDERSTANDING-WCAG20/ensure-compat-rsv.html)
- [G108: Using markup features to expose the name and role](https://www.w3.org/WAI/WCAG21/Techniques/general/G108)
- [Understanding Success Criterion 4.1.2: Name, Role, Value](https://www.w3.org/WAI/WCAG21/Understanding/name-role-value)
- [Semantics and ARIA](https://developers.google.com/web/fundamentals/accessibility/semantics-aria/)
- [WAI ARIA 1.1](https://www.w3.org/TR/wai-aria-1.1/)

@@ -30,7 +30,7 @@ The rule applies to any element with an `aria-hidden="true"` attribute.

## Expectation

None of the target elements are part of [sequential focus navigation](https://www.w3.org/TR/html/editing.html#sec-sequential-focus-navigation), nor do they have [descendants](https://dom.spec.whatwg.org/#concept-tree-descendant) in the [flat tree](https://drafts.csswg.org/css-scoping/#flat-tree) (work in progress) that are part of [sequential focus navigation](https://www.w3.org/TR/html/editing.html#sec-sequential-focus-navigation).
None of the target elements are part of [sequential focus navigation](https://html.spec.whatwg.org/multipage/interaction.html#sequential-focus-navigation), nor do they have [descendants](https://dom.spec.whatwg.org/#concept-tree-descendant) in the [flat tree](https://drafts.csswg.org/css-scoping/#flat-tree) (work in progress) that are part of [sequential focus navigation](https://www.w3.org/TR/html/editing.html#sec-sequential-focus-navigation).

## Assumptions

@@ -46,10 +46,9 @@ By adding `aria-hidden="true"` to an element, content authors ensure that assist

A focusable element with `aria-hidden="true"` is ignored as part of the reading order, but still part of the focus order, making it's state of visible or hidden unclear.

- https://www.w3.org/WAI/WCAG21/Understanding/info-and-relationships.html
- https://www.w3.org/WAI/WCAG21/Understanding/name-role-value.html
- https://www.w3.org/TR/wai-aria-1.1/#aria-hidden
- https://www.w3.org/TR/html/editing.html#can-be-focused
- [Understanding Success Criterion 1.3.1: Info and Relationships](https://www.w3.org/WAI/WCAG21/Understanding/info-and-relationships)
- [Understanding Success Criterion 4.1.2: Name, Role, Value](https://www.w3.org/WAI/WCAG21/Understanding/name-role-value)
- [`aria-hidden` (state)](https://www.w3.org/TR/wai-aria-1.1/#aria-hidden)

## Test Cases

@@ -38,8 +38,7 @@ _There are no major accessibility support issues known for this rule._
## Background

- [Understanding Success Criterion 4.1.1: Parsing](https://www.w3.org/WAI/WCAG21/Understanding/parsing.html)
- [Understanding Success Criterion 4.1.2: Name, Role, Value
](https://www.w3.org/WAI/WCAG21/Understanding/name-role-value.html)
- [Understanding Success Criterion 4.1.2: Name, Role, Value](https://www.w3.org/WAI/WCAG21/Understanding/name-role-value.html)
- [WAI-ARIA 1.1, Supported States and Properties](https://www.w3.org/TR/wai-aria-1.1/#states_and_properties)
- [WAI-ARIA 1.1, Global States and Properties](https://www.w3.org/TR/wai-aria-1.1/#global_states)

@@ -47,7 +47,7 @@ _There are no major accessibility support issues known for this rule._
## Background

- [Understanding Success Criterion 4.1.2: Name, Role, Value](https://www.w3.org/WAI/WCAG21/Understanding/name-role-value.html)
- [ARIA5: Using WAI-ARIA state and property attributes to expose the state of a user interface component](https://www.w3.org/TR/2016/NOTE-WCAG20-TECHS-20161007/ARIA5)
- [ARIA5: Using WAI-ARIA state and property attributes to expose the state of a user interface component](https://www.w3.org/WAI/WCAG21/Techniques/aria/ARIA5)
- [WAI-ARIA 1.1, Definitions of States and Properties](https://www.w3.org/TR/wai-aria-1.1/#state_prop_def)
- [WAI-ARIA 1.1, Characteristics of States and Properties, Value](https://www.w3.org/TR/wai-aria/#propcharacteristic_value)
- [Uniform Resource Identifier (URI): Generic Syntax (RFC 3986)](https://www.ietf.org/rfc/rfc3986.txt)
@@ -47,7 +47,7 @@ There are no major accessibility support issues known for this rule.

## Background

- [Understanding SC 1.2.1:Audio-only and Video-only (Prerecorded)](https://www.w3.org/TR/UNDERSTANDING-WCAG20/media-equiv-av-only-alt.html)
- [Understanding SC 1.2.1:Audio-only and Video-only (Prerecorded)](https://www.w3.org/WAI/WCAG21/Understanding/audio-only-and-video-only-prerecorded)

## Test Cases

@@ -40,8 +40,8 @@ There are no major accessibility support issues known for this rule.

## Background

- [Understanding SC 1.2.1:Audio-only and Video-only (Prerecorded)](https://www.w3.org/TR/UNDERSTANDING-WCAG20/media-equiv-av-only-alt.html)
- [G158:Providing an alternative for time-based media for audio-only content](https://www.w3.org/TR/WCAG20-TECHS/G158.html)
- [Understanding SC 1.2.1:Audio-only and Video-only (Prerecorded)](https://www.w3.org/WAI/WCAG21/Understanding/audio-only-and-video-only-prerecorded)
- [G158:Providing an alternative for time-based media for audio-only content](https://www.w3.org/WAI/WCAG21/Techniques/general/G158)

## Test Cases

@@ -46,8 +46,8 @@ There are no major accessibility support issues known for this rule.

## Background

- [Understanding SC 1.2.1:Audio-only and Video-only (Prerecorded)](https://www.w3.org/TR/UNDERSTANDING-WCAG20/media-equiv-av-only-alt.html)
- [G158:Providing an alternative for time-based media for audio-only content](https://www.w3.org/TR/WCAG20-TECHS/G158.html)
- [Understanding SC 1.2.1:Audio-only and Video-only (Prerecorded)](https://www.w3.org/WAI/WCAG21/Understanding/audio-only-and-video-only-prerecorded)
- [G158:Providing an alternative for time-based media for audio-only content](https://www.w3.org/WAI/WCAG21/Techniques/general/G158)

## Test Cases

@@ -57,9 +57,9 @@ While `autocomplete` in a promising technique for supporting personalisation in

The intent of this rule is to ensure that the `autocomplete` attribute can be used to suport personalization. Many users may find it easier to fill out forms if those can be styled or layed out in a way that is familiar to them. Assistive technologies can do this when a form control is marked up in such a way that its purpose can be understood. For instance, assistive technologies could add familiar icons and colors to different fields, making it easier for the user to understand what the form does.

- [https://www.w3.org/WAI/WCAG21/Understanding/identify-input-purpose.html](https://www.w3.org/WAI/WCAG21/Understanding/identify-input-purpose.html)
- [https://www.w3.org/TR/WCAG21/#dfn-programmatically-determinable](https://www.w3.org/TR/WCAG21/#dfn-programmatically-determinable)
- [https://www.w3.org/TR/html52/sec-forms.html#sec-autofill](https://www.w3.org/TR/html52/sec-forms.html#sec-autofill)
- [Understanding Success Criterion 1.3.5: Identify Input Purpose](https://www.w3.org/WAI/WCAG21/Understanding/identify-input-purpose.html)
- [Definition: programmatically determined (programmatically determinable)](https://www.w3.org/TR/WCAG21/#dfn-programmatically-determinable)
- [Autofill](https://www.w3.org/TR/html52/sec-forms.html#sec-autofill)

## Test Cases

@@ -38,10 +38,9 @@ There are no major accessibility support issues known for this rule.

## Background

- [https://www.w3.org/TR/UNDERSTANDING-WCAG20/ensure-compat-rsv.html](https://www.w3.org/TR/UNDERSTANDING-WCAG20/ensure-compat-rsv.html)
- [https://www.w3.org/WAI/WCAG20/quickref/?showtechniques=412#qr-ensure-compat-rsv](https://www.w3.org/WAI/WCAG20/quickref/?showtechniques=412#qr-ensure-compat-rsv)
- [ARIA14: Using aria-label to provide an invisible label where a visible label cannot be used](https://www.w3.org/TR/WCAG20-TECHS/ARIA14.html)
- [https://www.w3.org/TR/WCAG20-TECHS/ARIA16.html](https://www.w3.org/TR/WCAG20-TECHS/ARIA16.html)
- [Understanding Success Criterion 4.1.2: Name, Role, Value](https://www.w3.org/WAI/WCAG21/Understanding/name-role-value)
- [ARIA14: Using aria-label to provide an invisible label where a visible label cannot be used](https://www.w3.org/WAI/WCAG21/Techniques/aria/ARIA14)
- [ARIA16: Using aria-labelledby to provide a name for user interface controls](https://www.w3.org/WAI/WCAG21/Techniques/aria/ARIA16)

## Test Cases

@@ -41,8 +41,8 @@ Certain assistive technologies can be set up to ignore the title attribute, whic

## Background

- https://www.w3.org/TR/UNDERSTANDING-WCAG20/minimize-error-cues.html
- https://www.w3.org/TR/UNDERSTANDING-WCAG20/ensure-compat-rsv.html
- [Understanding Success Criterion 3.3.2: Labels or Instructions](https://www.w3.org/WAI/WCAG21/Understanding/labels-or-instructions)
- [Understanding Success Criterion 4.1.2: Name, Role, Value](https://www.w3.org/WAI/WCAG21/Understanding/name-role-value)

**Note**: This rule does not fail 3.3.2 as there are sufficient techniques within 3.3.2 that don't need the elements to have an accessible name. For example "G131: Providing descriptive labels" **AND** "G162: Positioning labels to maximize predictability of relationships" would be sufficient.

@@ -37,11 +37,10 @@ There are known combinations of a popular operating system with browsers and ass

## Background

- [https://www.w3.org/TR/2014/NOTE-WCAG20-TECHS-20140408/H57](https://www.w3.org/TR/2014/NOTE-WCAG20-TECHS-20140408/H57)
- [https://www.ietf.org/rfc/bcp/bcp47.txt](https://www.ietf.org/rfc/bcp/bcp47.txt)
- [https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/lang](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/lang)
- [https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/xml:lang](https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/xml:lang)
- [https://www.w3.org/TR/WCAG20-TECHS/H57.html](https://www.w3.org/TR/WCAG20-TECHS/H57.html)
- [H57: Using language attributes on the html element](https://www.w3.org/WAI/WCAG21/Techniques/html/H57)
- [BCP 47: Tags for Identifying Languages](https://www.ietf.org/rfc/bcp/bcp47.txt)
- [MDN: `lang` attribute](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/lang)
- [MDN: `xml:lang` attribute](https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/xml:lang)

## Test Cases

@@ -37,11 +37,10 @@ While HTML5 specification indicates that `xml:lang` attribute takes priority ove

## Background

- [https://www.w3.org/TR/2014/NOTE-WCAG20-TECHS-20140408/H57](https://www.w3.org/TR/2014/NOTE-WCAG20-TECHS-20140408/H57)
- [https://www.ietf.org/rfc/bcp/bcp47.txt](https://www.ietf.org/rfc/bcp/bcp47.txt)
- [https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/lang](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/lang)
- [https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/xml:lang](https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/xml:lang)
- [https://www.w3.org/TR/WCAG20-TECHS/H57.html](https://www.w3.org/TR/WCAG20-TECHS/H57.html)
- [H57: Using language attributes on the html element](https://www.w3.org/WAI/WCAG21/Techniques/html/H57)
- [BCP 47: Tags for Identifying Languages](https://www.ietf.org/rfc/bcp/bcp47.txt)
- [MDN: `lang` attribute](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/lang)
- [MDN: `xml:lang` attribute](https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/xml:lang)

## Test Cases

@@ -37,10 +37,10 @@ Since most assistive technologies will consistently use `lang` over `xml:lang` w

## Background

- [https://www.w3.org/TR/2014/NOTE-WCAG20-TECHS-20140408/H57](https://www.w3.org/TR/2014/NOTE-WCAG20-TECHS-20140408/H57)
- [https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/lang](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/lang)
- [https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/xml:lang](https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/xml:lang)
- [https://www.w3.org/TR/WCAG20-TECHS/H57.html](https://www.w3.org/TR/WCAG20-TECHS/H57.html)
- [H57: Using language attributes on the html element](https://www.w3.org/WAI/WCAG21/Techniques/html/H57)
- [BCP 47: Tags for Identifying Languages](https://www.ietf.org/rfc/bcp/bcp47.txt)
- [MDN: `lang` attribute](https://developer.mozilla.org/en-US/docs/Web/HTML/Global_attributes/lang)
- [MDN: `xml:lang` attribute](https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/xml:lang)

## Test Cases

@@ -37,7 +37,7 @@ _There are no major accessibility support issues known for this rule._

## Background

- [H64: Using the title attribute of the frame and iframe elements](http://www.w3.org/TR/WCAG20-TECHS/H64.html)
- [H64: Using the title attribute of the frame and iframe elements](https://www.w3.org/WAI/WCAG21/Techniques/html/H64)
- [Understanding Success Criterion 4.1.2](https://www.w3.org/WAI/WCAG21/Understanding/name-role-value.html)
- [Understanding Success Criterion 2.4.1](https://www.w3.org/WAI/WCAG21/Understanding/bypass-blocks.html)
- [User interface component](https://www.w3.org/TR/WCAG21/#dfn-user-interface-components)
@@ -38,14 +38,14 @@ There is a known combination of a popular browser and assistive technology that

## Background

- [G94: Providing short text alternative for non-text content that serves the same purpose and presents the same information as the non-text content](https://www.w3.org/TR/2016/NOTE-WCAG20-TECHS-20161007/G94)
- [G95: Providing short text alternatives that provide a brief description of the non-text content](https://www.w3.org/TR/2016/NOTE-WCAG20-TECHS-20161007/G95)
- [H37: Using alt attributes on img elements](https://www.w3.org/TR/2016/NOTE-WCAG20-TECHS-20161007/H37)
- [ARIA6: Using aria-label to provide labels for objects](https://www.w3.org/TR/2016/NOTE-WCAG20-TECHS-20161007/ARIA6)
- [ARIA10: Using aria-labelledby to provide a text alternative for non-text content](https://www.w3.org/TR/2016/NOTE-WCAG20-TECHS-20161007/ARIA10)
- [H67: Using null alt text and no title attribute on img elements for images that AT should ignore](https://www.w3.org/TR/2016/NOTE-WCAG20-TECHS-20161007/H67)
- [F38: Failure of Success Criterion 1.1.1 due to not marking up decorative images in HTML in a way that allows assistive technology to ignore them](https://www.w3.org/TR/2016/NOTE-WCAG20-TECHS-20161007/F38)
- [F65: Failure of Success Criterion 1.1.1 due to omitting the alt attribute or text alternative on img elements, area elements, and input elements of type "image"](https://www.w3.org/TR/2016/NOTE-WCAG20-TECHS-20161007/F65)
- [G94: Providing short text alternative for non-text content that serves the same purpose and presents the same information as the non-text content](https://www.w3.org/WAI/WCAG21/Techniques/general/G94)
- [G95: Providing short text alternatives that provide a brief description of the non-text content](https://www.w3.org/WAI/WCAG21/Techniques/general/G95)
- [H37: Using alt attributes on img elements](https://www.w3.org/WAI/WCAG21/Techniques/html/H37)
- [ARIA6: Using aria-label to provide labels for objects](https://www.w3.org/WAI/WCAG21/Techniques/aria/ARIA6)
- [ARIA10: Using aria-labelledby to provide a text alternative for non-text content](https://www.w3.org/WAI/WCAG21/Techniques/aria/ARIA10)
- [H67: Using null alt text and no title attribute on img elements for images that AT should ignore](https://www.w3.org/WAI/WCAG21/Techniques/html/H67)
- [F38: Failure of Success Criterion 1.1.1 due to not marking up decorative images in HTML in a way that allows assistive technology to ignore them](https://www.w3.org/WAI/WCAG21/Techniques/failures/F38)
- [F65: Failure of Success Criterion 1.1.1 due to omitting the alt attribute or text alternative on img elements, area elements, and input elements of type "image"](https://www.w3.org/WAI/WCAG21/Techniques/failures/F65)

## Test Cases

@@ -45,7 +45,7 @@ There are no major accessibility support issues known for this rule.

## Background

- https://www.w3.org/TR/WCAG21/#label-in-name
- [Understanding Success Criterion 2.5.3: Label in Name](https://www.w3.org/WAI/WCAG21/Understanding/label-in-name.html)

## Test Cases

@@ -35,10 +35,9 @@ _There are no major accessibility support issues known for this rule._

## Background

- [https://www.w3.org/TR/2014/NOTE-WCAG20-TECHS-20140408/H58](https://www.w3.org/TR/2014/NOTE-WCAG20-TECHS-20140408/H58)
- [https://www.ietf.org/rfc/bcp/bcp47.txt](https://www.ietf.org/rfc/bcp/bcp47.txt)
- [http://wiki.egovmon.no/wiki/SC3.1.2#Element_descendent-or-self::body.5B.40lang.5D_or_descendent-or-self::body.5B.40xml:lang.5D](http://wiki.egovmon.no/wiki/SC3.1.2#Element_descendent-or-self::body.5B.40lang.)
- [https://www.w3.org/WAI/WCAG20/quickref/?showtechniques=312#qr-meaning-other-lang-id](https://www.w3.org/WAI/WCAG20/quickref/?showtechniques=312#qr-meaning-other-lang-id)
- [H58: Using language attributes to identify changes in the human language](https://www.w3.org/WAI/WCAG21/Techniques/html/H58)
- [BCP 47: Tags for Identifying Languages](https://www.ietf.org/rfc/bcp/bcp47.txt)
- [Understanding Success Criterion 3.1.2: Language of Parts](https://www.w3.org/WAI/WCAG21/Understanding/language-of-parts)

## Test Cases

@@ -38,18 +38,18 @@ Each target element has an [accessible name](#accessible-name) that is not only

## Assumptions

- The rule assumes that all links are [user interface components](https://www.w3.org/TR/WCAG20/#user-interface-componentdef) as defined by WCAG 2. When the link role is used incorrectly, this assumption may not be true.
- The rule assumes that all links are [user interface components](https://www.w3.org/TR/WCAG21/#dfn-user-interface-components) as defined by WCAG 2. When the link role is used incorrectly, this assumption may not be true.

## Accessibility Support

For `area` elements that have a `href` attribute, but are not nested inside a `map` element, there are differences between browsers and assistive technology on whether the `area` is considered [included in the accessibility tree](#included-in-the-accessibility-tree) or not.

## Background

- [https://www.w3.org/WAI/WCAG20/quickref/?showtechniques=244#navigation-mechanisms-refs](https://www.w3.org/WAI/WCAG20/quickref/?showtechniques=244#navigation-mechanisms-refs)
- [ARIA7: Using aria-labelledby for link purpose](https://www.w3.org/TR/WCAG20-TECHS/ARIA7.html)
- [ARIA8: Using aria-label for link purpose](https://www.w3.org/TR/WCAG20-TECHS/ARIA8.html)
- [F89: Failure of Success Criteria 2.4.4, 2.4.9 and 4.1.2 due to using null alt on an image where the image is the only content in a link](http://www.w3.org/TR/WCAG20-TECHS/F89.html)
- [Understanding Success Criterion 2.4.4: Link Purpose (In Context)](https://www.w3.org/WAI/WCAG21/Understanding/link-purpose-in-context)
- [ARIA7: Using aria-labelledby for link purpose](https://www.w3.org/WAI/WCAG21/Techniques/aria/ARIA7)
- [ARIA8: Using aria-label for link purpose](https://www.w3.org/WAI/WCAG21/Techniques/aria/ARIA8)
- [F89: Failure of Success Criteria 2.4.4, 2.4.9 and 4.1.2 due to not providing an accessible name for an image which is the only content in a link](https://www.w3.org/WAI/WCAG21/Techniques/failures/F89)

## Test Cases

@@ -40,7 +40,7 @@ The `time` of the `content` attribute is 0 or greater than 72000 (20 hours).
## Assumptions

- This test assumes no functionality was provided by the website for the user to adjust the timer.
- This test assumes that the refresh was not [essential](https://www.w3.org/TR/UNDERSTANDING-WCAG20/time-limits-required-behaviors.html#essentialdef), which is listed as a valid exception to SC 2.2.1.
- This test assumes that the refresh was not [essential](https://www.w3.org/TR/WCAG21/#dfn-essential), which is listed as a valid exception to SC 2.2.1.

## Accessibility Support

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