commit f1eb79c5305e19ceee013af158dd853e80e9d312
author Matt Falkenhagen <falken@chromium.org> Fri Feb 16 07:25:55 2018
committer Commit Bot <commit-bot@chromium.org> Fri Feb 16 07:25:55 2018
tree ade7dbb2b4abd2265ed5409ec4bb202a5c93cdfc
parent f73729069287840409d64ecd95667febf658388e

service worker: Disallow interception for EMBED and OBJECT requests.

This matches the service worker specification and Firefox.

This change itself is probably not enough to skip all EMBED/OBJECT
requests, as some requests get initiated by PepperURLLoaderHost or
MimeHandlerViewContainer.

In implementor concerns:
https://w3c.github.io/ServiceWorker/#implementer-concerns
"Plug-ins should not load via service workers. As plug-ins may get their
security origins from their own urls, the embedding service worker cannot
handle it. For this reason, the Handle Fetch algorithm makes the
potential-navigation-or-subresource request (whose context is either <embed> or
<object>) immediately fallback to the network without dispatching fetch event."

In Handle Fetch:
https://w3c.github.io/ServiceWorker/#handle-fetch
"If request is a potential-navigation-or-subresource request, then:
Return null."


R=kinuko, yhirano

Bug: 771933
Change-Id: Ia04ae8dec8c968de6a73dca088aa88a67b21718a
Reviewed-on: https://chromium-review.googlesource.com/923445
Reviewed-by: Kinuko Yasuda <kinuko@chromium.org>
Commit-Queue: Matt Falkenhagen <falken@chromium.org>
Cr-Commit-Position: refs/heads/master@{#537245}