Features
- add axe.frameMessenger with configurable allowedOrigins (#2880) (b27bab3)
- aria-allowed-attr: add ARIA 1.2 prohibited attrs check (#2764) (4a77e88)
- empty-table-header: new rule to flag empty table headers (#2811) (813ee7e)
- frame-focusable-content: new rule to test iframes with tabindex=-1 do not have focusable content (#2785) (aeb044c)
- locale: missing translations for DE (#2704) (f312994)
- locale: Polish translation (#2677) (c46979f)
- nested-interactive: new rule to flag nested interactive elements (#2691) (13a7cf1)
- role-text: add role-text rule (#2702) (7c05162)
- setup/teardown: add functions to setup and teardown axe-core internal data, deprecate axe._tree (#2738) (9d19f24)
- standards: add graphics roles (#2761) (22032cc)
- standards/aria-roles: add presentational children property (#2689) (78c239c)
- utils.getRule: add function to get rule by id (#2724) (9d0af53)
- utils/matches: support selectors level 4 :not and :is (#2742) (21d9b0e)
- virtual-node: add attrNames property which returns list of attribute names (#2741) (1d864b4)
Bug Fixes
- aria-allowed-attr: error when generic elements use aria-label and aria-labelledy (#2766) (64379e1)
- aria-required-children: allow group and rowgroup roles (#2661) (5a264e4)
- aria-required-children: only match for roles that require children (#2703) (95de169)
- aria-valid-attr-value: pass for aria-errormessage when aria-invalid is not set or false (#2721) (93a765c)
- aria-valid-attr-value: report when aria-labelledby ref is not in DOM (#2723) (116eb06)
- aria-valid-attr-value: return false when int type attribute uses invalid values (#2710) (ce9917e)
- bypass: mark as needs review rather than failure (#2818) (bb41b3e)
- focus-order-semantics: allow role=tooltip to pass (#2871) (dc526d8)
- heading-order: handle iframe as first result (#2876) (33428d8)
- respondable: Avoid message duplication with messageId (#2816) (4bd0acf)
- respondable: work on iframes in shadow DOM (#2857) (38cad94)
- avoid 'undefined' showing in check messages (#2779) (3beb0b1)
- properly translate checks when building axe.js using --lang (#2848) (76545b0)
- aria-required-parent: only match for roles that require parents (#2707) (ce8281e)
- color-contrast: account for text client rects that start outside the parent container (#2682) (a4e4a34)
- color-contrast-matches: do not pass empty string to getElementById (#2739) (0b0fec2)
- frame-title: update rule description to be more descriptive (#2735) (159e25b)
- heading-order: allow partial context to pass (#2622) (f8baee6)
- landmark-complementary-is-top-level: allow aside inside main (#2740) (9388c96)
- metadata: consistenct use of 'must' and 'should' (#2770) (603b612)
- region: allow role=alertdialog as region (#2660) (b928df7)
- select-name: fix typo in accessible name help (#2676) (6b916b9)
- to-grid/get-headers: work with rowspan=0 (#2722) (508190b)
- types: Add noHtml option (#2810) (c03c826)
- utils: fix warning thrown by Webpack (#2843) (0826177), closes #2840
- utils: remove attributes from source string (#2803) (8e8c4fa)
- add noHtml to axe.configure (#2789) (5c8dec8)
- do not allow postMessage with axe version of x.y.z (#2790) (5acda82)