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isFocusable is too strict on tabindex #4632

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WilcoFiers opened this issue Nov 6, 2024 · 2 comments
Open

isFocusable is too strict on tabindex #4632

WilcoFiers opened this issue Nov 6, 2024 · 2 comments
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core Issues in the core code (lib/core) fix Bug fixes good first issue For first-time contributors

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@WilcoFiers
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WilcoFiers commented Nov 6, 2024 •
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The way axe-core checks whether tabindex is valid is by calling parseInt(). That's different from how HTMLhttps://html.spec.whatwg.org/#rules-for-parsing-integers says to do it. Basically, axe should use this to match, and then parseInt the captured group: /^\s*([-+]?\d+)/

The issue is here: lib/commons/dom/is-focusable.js
The tests for it need to be here: test/commons/dom/is-focusable.js
@WilcoFiers WilcoFiers added core Issues in the core code (lib/core) fix Bug fixes good first issue For first-time contributors labels Nov 6, 2024
@ahmedhalac
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Hi @WilcoFiers. Can I work on this?

@WilcoFiers
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@ahmedhalac, yeah that would be great!

ahmedhalac added a commit to ahmedhalac/axe-core that referenced this issue Nov 11, 2024
@ahmedhalac
refactor(dequelabs#4632): correct tabindex parsing logic
84bb7d2 
Ensures tabindex is correctly parsed as an integer using regex instead of parseInt to comply with HTML standards.

Related to dequelabs#4632
@ahmedhalac ahmedhalac mentioned this issue Nov 11, 2024
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