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Add variable fallback to fix Chrome issue (#15003)
This works around an issue in Chrome where `::selection` does not read from variables defined on `::selection` thus breaking all uses of color utilities with the selection variant. e.g. `selection::bg-red-200`. We now add a fallback value of `1` to all uses of `var(--tw-bg-opacity)`, `var(--tw-text-opacity)`, `var(--tw-border-opacity)`, etc… since Chrome treats the variable as if it did not exist because it's not defined on the parent. In Chrome 131 (until the change is rolled back) existing utilities like these will not work: - `selection:text-opacity-50` - `selection:[--tw-text-opacity:0.5]` Fixes #15000 --------- Co-authored-by: Adam Wathan <adam.wathan@gmail.com>
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‎CHANGELOG.md

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- Bump versions for security vulnerabilities ([#14697](https://github.com/tailwindlabs/tailwindcss/pull/14697))
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- Ensure the TypeScript types for the `boxShadow` theme configuration allows arrays ([#14856](https://github.com/tailwindlabs/tailwindcss/pull/14856))
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- Set fallback for opacity variables to ensure setting colors with the `selection:*` variant works in Chrome 131 ([#15003](https://github.com/tailwindlabs/tailwindcss/pull/15003))
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## [3.4.14] - 2024-10-15
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‎integrations/parcel/tests/integration.test.js

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.bg-primary {
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background-color: rgb(0 0 0 / var(--tw-bg-opacity));
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background-color: rgb(0 0 0 / var(--tw-bg-opacity, 1));
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`)
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expect(await readOutputFile(/index\.\w+\.css$/)).toIncludeCss(css`
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.bg-primary {
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--tw-bg-opacity: 1;
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background-color: rgb(0 0 0 / var(--tw-bg-opacity));
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background-color: rgb(0 0 0 / var(--tw-bg-opacity, 1));
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}
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`)
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.bg-red-500 {
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--tw-bg-opacity: 1;
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background-color: rgb(239 68 68 / var(--tw-bg-opacity));
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background-color: rgb(239 68 68 / var(--tw-bg-opacity, 1));
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.font-bold {
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.bg-red-500 {
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--tw-bg-opacity: 1;
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background-color: rgb(239 68 68 / var(--tw-bg-opacity));
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background-color: rgb(239 68 68 / var(--tw-bg-opacity, 1));
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.btn {
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background-color: rgb(239 68 68 / var(--tw-bg-opacity));
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background-color: rgb(239 68 68 / var(--tw-bg-opacity, 1));
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border-radius: 0.25rem;
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‎integrations/postcss-cli/tests/integration.test.js

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background-color: rgb(239 68 68 / var(--tw-bg-opacity, 1));
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background-color: rgb(239 68 68 / var(--tw-bg-opacity, 1));
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‎integrations/rollup-sass/tests/integration.test.js

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background-color: rgb(239 68 68 / var(--tw-bg-opacity, 1));
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‎integrations/rollup/tests/integration.test.js

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‎integrations/tailwindcss-cli/tests/cli.test.js

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‎integrations/tailwindcss-cli/tests/integration.test.js

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‎integrations/vite/tests/integration.test.js

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‎integrations/webpack-4/tests/integration.test.js

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padding-left: 0.5rem;
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