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by franciscop 3356 days ago
Cannot reply below, reached the limit of HN!

There is a case where jQuery cannot use it since they aim to support SVG in all officially supported browsers, and classList doesn't work properly inside SVG in IE11 (Umbrella doesn't officially support SVG).

I tried refactoring a bit of the code of jQuery, but every thing I touched or changed a lot of tests failed; so I'd have to do a ton of work ignoring the tests and then fix a ton of bugs for a low chance of success (so it was not cost-effective relatively to improving Umbrella).