LGTM2. I think we should expect some compat issues with this change, but
they're currently the ones experienced by Safari and Firefox:
https://github.com/jsbin/jsbin/issues/3485
https://github.com/webcompat/web-bugs/issues/105859
https://bugzilla.mozilla.org/show_bug.cgi?id=1737541 (see bugs in "See
also")
Do we have any plans to make the developer community aware of the need
to delegate web-share permission to iframes now? Maybe a blog post in
the works?
On 11/18/22 4:25 AM, Yoav Weiss wrote:
LGTM1
Thanks for catching us up here! :)
On Thu, Nov 17, 2022 at 11:18 PM Eric Willigers
<ericwillig...@chromium.org> wrote:
Contact emails
ericwillig...@chromium.org, fin...@chromium.org
Explainer
https://github.com/w3c/web-share/blob/master/docs/explainer.md
Specification
https://w3c.github.io/web-share/#permissions-policy
<https://w3c.github.io/web-share/#permissions-policy>*
*
Summary
A new permission policy, "web-share", controls access to
navigator.share().
The default allowlist is 'self', avoiding possible abuse by third
party iframes.
Link to blink-dev discussion
https://groups.google.com/a/chromium.org/g/blink-dev/c/fgme9KOd8CU/m/TCYPKQAXAwAJ
<https://groups.google.com/a/chromium.org/g/blink-dev/c/fgme9KOd8CU/m/TCYPKQAXAwAJ>
Blink component
Blink>WebShare
<https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EWebShare>
TAG review
Not needed, trivial change to existing spec
A better reasoning would be that we're aligning to shipped behavior in
other engines.
TAG review status
Not applicable*
*
Risks
Interoperability and Compatibility
navigator.share() is called by embedded iframes. These may expect
share() calls to succeed, when now they will fail if permission
has not been granted.
Firefox has successfully shipped the feature.
Failures were observed with YouTube, these have now been addressed.
Gecko: Shipped/Shipping (https://github.com/w3c/web-share/pull/252)
WebKit: Shipped/Shipping
(https://github.com/w3c/web-share/issues/169) CL recently merged:
https://github.com/WebKit/WebKit/commit/ded7a6094a6ca38833e63a7915b7b6a2832f5734
Web developers: No signals
Other signals:
WebView application risks
Does this intent deprecate or change behavior of existing APIs,
such that it has potentially high risk for Android WebView-based
applications?
N/A - Web Share API is not enabled in WebView.
Debuggability
No DevTools changes needed.
Will this feature be supported on all six Blink platforms
(Windows, Mac, Linux, Chrome OS, Android, and Android WebView)?
No
The Permissions Policy will be supported on all platforms that
support Web Share API. Currently, this is Android, Chrome OS, Windows.
Is this feature fully tested by web-platform-tests
<https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>?
Yes
Flag name
Requires code in //chrome?
False
Tracking bug
https://bugs.chromium.org/p/chromium/issues/detail?id=1079104
Sample links
https://scrawny-bottlenose-somersault.glitch.me/share-from-iframes.html
Estimated milestones
M110
Anticipated spec changes
-
Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/6362499966304256
This intent message was generated by Chrome Platform Status
<https://chromestatus.com/>.
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