Since 3.6.2 breaks build in Firefox 17

[infodusha]

No errors found, but i see only white screen.
Can't understand how that can be. I think something browser-specific happens.
Besides, in Chrome 79 all is ok.
Downgrade to 3.6.1 helps.

[irbian]

I´m experiencing the same behaviour on wkhtmltopdf / QtWeb, that matches a Chrome 12/13. 3.6.1 works, 3.6.2, not

[zloirock]

What about actual versions? In core-js@3.6.2 was added detection of incorrect ToLength conversion in Array methods. After that detection was changed to safer.

[olemartinorg]

I'm having similar problems, but I get an error in my console: Uncaught TypeError: can't convert V8VERSION to number. This happens because the export from engine-v8-version.js is undefined, and probably because of some intricacies in module loading I don't know much about, the imported value is a special Object {default: undefined} which cannot be converted to a number. In a chrome-based browser, this value will be of type number.

I looked around, and v8-version.js was extracted from the Promise polyfill in v3.3.5, and was later renamed to engine-v8-version.js in v3.6.2. Other than that rename operation, no new modules seem to be importing engine-v8-version in v3.6.2, and I'm able to reproduce the TypeError all the way down to v3.3.5.

I'm tempted to just submit a pull request to just export || 0 when the match returns undefined.

[terencehonles]

For those on Qt webkit this patch seems to fix my issue #911 not sure if it helps with the FF in question.

[zloirock]

I dropped ToLength detection from array methods feature detection since it could cause hanging of some old engines and I don't see any possible workaround which could work everywhere.