@hober, during TPAC you mentioned that this may be of interest to the WebKit community. Would you be the right person to help us with reviewing/designing this extension to web share?

There's code implementing file sharing now in WebKit trunk, see: https://bugs.webkit.org/show_bug.cgi?id=207491

@othermaciej, that's fantastic news! thanks for the update.

Were you folks ok with the way .canShare() works? I'd made an alternative proposal in #108? Happy to close it that if WebKit will follow Chrome's behavior tho.

We've currently implemented more or less what is in the spec. However, it's not too late to change what we have before it ships in a non-preview release.

I personally think the change proposed in issue #108 would be an improvement. I think canShare at one point checked for support of sharing specific file types, but now effectively just checks whether file sharing is supported. It seems unwieldy to construct a full ShareData just to check that. One downside is that a method with the same name but different parameters would be maximally likely to cause a compat issue if any content has adopted this AP. I'll comment to that effect in the issue.

Sent a PR to WPT so the corresponding test is no longer be tentative.

Filed Gecko bug. I'll see if I, or someone on Mozilla's DOM Team, can find time to implement it.

@ericwilligers, @mgiuca, this is probably ready to land I think.