Release v2.11.0

This release includes several performance improvements, new features and the ability to properly require the accessibility developer tools in Node.

Performance enhancements

These changes were driven by @ricksbrown

• Allow caller to bypass entire DOM walk
• Allow for other 'requires' beyond 'consoleAPI'
• Collect 'hidden' and 'disabled' info during DOM traversal
• Start using new 'hidden' and 'disabled' flags
• Optionally collect 'idreferrers' while traversing DOM
• Start using new 'idreferrers' flag

Requirable as a Node library

Until now, reusing the accessibility devtools via Node has required manual wrapping by end-users which was suboptimal. We have now unwrapped the axs package for use in Node and exposed the output in our dist file for easy consumption.

This change was driven by @philschatz

Updates

• Now works with sites using an AMD Loader by @joscha
• Enables special characters to be used in some query selector strings by @joscha
• Updated to use the latest version of the Closure Library on GitHub by @heidmotron
• fix: null access for missing referrers of aria-describedby by @joscha
• fix: exception thrown when testing tooltips without aria-describedby by @alice

Big thanks goes out to @alice for all of her work on code-reviews and generally maintaining this module.

v2.10.1-rc.3

A new stable release with a number of improvements will be coming shortly. This is an RC we're making available while we work on polish.

v2.10.0

Bug fixes:

• linkWithUnclearPurpose should only look at links, not <a> without href. (#245)

New rules

• A tabpanel should be related to a tab via aria-controls or aria-labelledby (src/audits/UncontrolledTabpanel.js)
• A data table must identify row and column headers (src/audits/TableHasAppropriateHeaders.js)
• A tooltip element should have an aria-describedby referring to it (src/audits/RoleTooltipRequiresDescribedBy.js).

Enhancements

• Pull DOM-related functionality out into DOMUtils.js

Bug fixes:

• Fix findTextAlternatives not always correctly ignoring hidden elements (#217).
• findTextAlternatives now honors alt attribute of input type image
• Revert #150 which was causing the extension not to work.
• AX_HTML_02 (duplicate IDs) now only audits elements that are referenced by an IDREF (#141);
• Fix #171 by being smarter about finding the composed parent node.
• Tweak in canScrollTo to handle the (common) case where the container is document.body (#243).
• linkWithUnclearPurpose should only look at links, not without href. (#245)

v2.9.0

New rules

• A label element may not have labelable descendants other than its labeled control (src/audits/MultipleLabelableElementsPerLabel.js)

Enhancements

• Implement support for specifying audit configuration options through an object when initializing audits (#165).
• Implement support for AMD loaders.

Bug fixes:

• Fix badAriaAttributeValue not correctly handling decimal values (#182).
• Work around null pointer exception caused by closure compiler issue (#183).
• Add a special case to handle color "transparent" to fix (#180).
• Fix matchSelector not working properly in browser environments without vendor prefixes (#189).
• Fix false positives on elements with no role for Unsupported ARIA Attribute rule (#178 and #199).
• Fix ARIA tablist and ARIA tab scope (#204)
• Fix link with clear purpose with text alternative (#156);
• Handle edge cases in number parser, e.g. "+1", ".1", "01"
• HTML button containing img with alt attribute now passes controlsWithoutLabel (#202)
• Disabled elements should be ignored by low contrast audit (#205)
• Fix input of type "text" did not find correct implied role (#225)
• Hidden links are no longer relevant for meaningful link text rule.

v2.8.0

Enhancements:

• Pull color code into separate file.
• Improve color suggestion algorithm.
• Descend into iframes when collecting matching elements.

v2.7.1

Enhancements:

• Rework findTextAlternatives not to return non-exposed text alternatives.
• Add Bower config (#157)

Bug fixes:

• Check for any text alternatives when assessing unlabeled images (#154).
• Check for null textAlternatives in FocusableElementNotVisibleAndNotAriaHidden's relevantElementMatcher method.

Release v2.7.0

New rules

• This element does not support ARIA roles, states and properties (src/audits/AriaOnReservedElement.js)
• aria-owns should not be used if ownership is implicit in the DOM (src/audits/AriaOwnsDescendant.js)
• Elements with ARIA roles must be in the correct scope (src/audits/AriaRoleNotScoped.js)
• An element's ID must be unique in the DOM (src/audits/DuplicateId.js)
• The web page should have the content's human language indicated in the markup (src/audits/HumanLangMissing.js)
• An element's ID must not be present in more that one aria-owns attribute at any time (src/audits/MultipleAriaOwners.js)
• ARIA attributes which refer to other elements by ID should refer to elements which exist in the DOM (src/audits/NonExistentAriaRelatedElement.js - previously src/audits/NonExistentAriaLabeledBy.js)
• Elements with ARIA roles must ensure required owned elements are present (src/audits/RequiredOwnedAriaRoleMissing.js)
• Avoid positive integer values for tabIndex (src/audits/TabIndexGreaterThanZero.js)
• This element has an unsupported ARIA attribute (src/audits/UnsupportedAriaAttribute.js)

Enhancements:

• Add configurable blacklist phrases and stop words to LinkWithUnclearPurpose (#99)
• Detect and warn if we reuse the same code for more than one rule. (#133)
• Force focus before testing visibility on focusable elements. (#65)
• Use getDistributedNodes to get nodes distributed into shadowRoots (#128)
• Add section to Audit Rules page for HumanLangMissing and link to it from rule (#119)
• Reference "applied role" in axs.utils.getRoles enhancement (#130)
• Add warning that AX_FOCUS_02 is not available from axs.Audit.run() (#85)

Bug fixes:

• Incorrect use of nth-of-type against className in utils.getQuerySelectorText (#87)
• AX_TEXT_01 Accessibility Audit test should probably ignore role=presentation elements (#97)
• Fix path to audit rules in phantomjs runner (#108)
• Label audit should fail if form fields lack a label, even with placeholder text (#81)
• False positives for controls without labels with role=presentation (#23)
• Fix "valid" flag on return value of axs.utils.getRoles (#131)

Note: this version number is somewhat arbitrary - just bringing it vaguely in line with the extension since that's where the library originated - but will use semver for version bumps going forward from here.

Release v0.0.5

Bug fixes:

• FocusableElementNotVisibleAndNotAriaHidden audit passes on elements which are brought onscreen on focus
• UnfocusableElementsWithOnclick checks for element.disabled
• Fix infinite loop when getting descendant text content of a label containing an input
• Detect elements which are out of scroll area of any parent element, not just the document scroll area
• findTextAlternatives doesn't throw TypeError if used on a HTMLSelectElement

Enhancements:

• overlapping elements detection code made more sophisticated
• axs.properties.getFocusProperties() returns more information about visibility
• new axs.properties.hasDirectTextDescendant() method with more sophisticated detection of text content

Release v0.0.4

axs.AuditRule.run() has a new signature: it now takes an options object. Please see method documentation for details.

Audit Rule severity can be overridden (per Audit Rule) in AuditConfig.

Minor fixes:

• axs.utils.isLowContrast() now rounds to the nearest 0.1 before checking (so #777 is now a passing value)
• MainRoleOnInappropriateElement was always failing due to accessible name calculation taking the main role into account and not descending into content (now just gets descendant content directly)
• UnfocusableElementsWithOnClick had a dangling if-statement causing very noisy false positives

Full diff from v0.0.3: v0.0.3...v0.0.4