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Consider dropping support for IE < 8, even optionally? #18

adamwathan opened this Issue Jan 14, 2019 · 2 comments


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adamwathan commented Jan 14, 2019

Right now : is escaped as \3A instead of \: to support really old versions of IE, like 6 and 7.

This is a bit of a pain because of a bug in css-loader that strips the leading \ from these sort of escape sequences:


It's been open for about 1.5 years and is apparently a difficult fix, but it only affects me personally (and other tailwindcss users) in the case of the : character.

Since market share for IE < 8 is basically zero, it would be amazing if there was a way to just use \: instead of \3A .

Thanks so much for this great library 👍


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mathiasbynens commented Feb 3, 2019

I’d be fine with releasing a new major cssesc version without escapes for legacy browsers. Care to submit a PR?


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adamwathan commented Feb 3, 2019

Awesome thanks, PR'd in #19, let me know if I missed anything 👍

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