Run at least a subset of the tests in-browser before releases

[quantizor]

Frankly, it scares me a little that a substantial IE text node bug made it through into a release candidate. Some of the tests could fairly easily be run on SauceLabs or a similar service to do actual browser verification.

[iamdustan]

Is this not precisely what prereleases are for? To capture bugs that unit tests and the team has missed in development?

[gaearon]

This is definitely something we want to do.
Please refer to #5703 for the related discussion.
I’m not sure what the specific roadblocks are, but it’s better to ask in the existing issue.

[quantizor]

@iamdustan absolutely not. Relying on the community to catch core bugs is ludicrous

[zpao]

Yea, this was a bad one that got through. We should have caught it. There are a couple things we could do differently for that particular one (including but not limited to browser testing). Thanks for bringing it up - it's definitely on our minds.