dequelabs / dequelabs/axe-core
The color-contrast rule doesn't take the CSS filter property into account.
Open
color contrast
feat
- Dominant language
- JavaScript
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Description
Product: axe Extension (and probably all other products)
Expectation: axe-core should discover contrast issues caused by the filter property. `opacity: 0.1` and `filter: opacity(0.1)` are [technically the same](https://developer.mozilla.org/en-US/docs/Web/CSS/filter#opacity) and should be treated the same.
Actual: The color-contrast rule doesn't take the filter property into account.
Here's a demo: https://codepen.io/matuzo/debug/LYjpQPZ
axe-core version: 4.3.3
Chrome extension
Chrome 94
macOS 11.6
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