String.prototype.trim incorrect safari version range

[cdaringe]

What

Problem

String.prototype.trim claims safari = "<12.1", which appears incorrect

Details

• MDN claims support: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/Trim
• https://caniuse.com/?search=trim

I suspect it should be <5 vs <12.1!

Please assert and we will send a patch

[JakeChampion]

Hi, this is due to the fact the version of unicode used in ecmascript was updated and changed what was defined as whitespace - that whitespace definition is used in string.prototypr.trim, which meant older browsers had a spec non compliant implementation, which is why we polyfill those versions.

This is the commit which updated the spec tc39/ecma262#300

[cdaringe]

Ouch! https://en.wikipedia.org/wiki/Whitespace_character#Unicode

must have been rough doing that diff