Interventions: updates since 5/23/2017

[kenji...@chromium.org]

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What are interventions?
An Intervention is when a Browser opts for:

• an intentional deviation from a behavior that developers expect and/or rely on,
• which is motivated by the desire to fulfill an important user need.

Because of its nature, it must be done sparingly and with extreme care to not only achieve but also sustain a positive outcome.


Updates for interventions since 5/23/2017

Cancel modal dialogs on tab switch and don't allow them for background pages ("Project OldSpice")
Engineer(s): a...@google.com
Status as of 5/24/2017

Turned on everywhere

Next Steps:

After m60 branch, turn it on permanently, remove flags.

Link(s): implementation


lofi++: range requests for getting image dimensions
Engineer(s): be...@google.com
Status as of 5/25/2017

Pushed back to M-61.

Next Steps:

Finish remaining implementation tasks.

Link(s): implementation


only allow beforeunload dialogs on frames that have had a user gesture
Engineer(s): a...@google.com
Status as of 5/24/2017

Landed in M60.

Next Steps:

There is a followup issue where a keyboard command to close or reload could be mistaken for a user gesture. Working on that.

Full details for all the interventions can be found at bit.ly/proposed-interventions.
See also, WICG interventions: a place for browsers to collaborate on browser interventions.
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