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BrowsingContextIDs are consistent across the processes, so we can use them to target frames in both browser and content processes. This will aid browser-side navigation. As a nice side-effect, we can drop a round-trip to the content process for every `requestWillBeSent` event since we *almost* always can attribute all network events to the proper parent frames. I say "almost", because we in fact **fail** to correctly attribute requests from workers that are instantiated by subframes. This, however, is not working in Chromium ATM, so I consider this to be a minor regression that is worth the simplification.
Contributing Browser Patches
Firefox and WebKit have additional patches atop to expose necessary capabilities.
Ideally, all these changes should be upstreamed. For the time being, it is possible to setup a browser checkout and develop from there.
1. Setting up local browser checkout
From the playwright repo, run the following command:
$ ./browser_patches/prepare_checkout.sh firefox <path to checkout>
(you can optionally pass "webkit" for a webkit checkout)
If you don't have a checkout, don't pass a path and one will be created for you in ./browser_patches/firefox/checkout
NOTE: this command downloads GBs of data.
This command will:
- create a
browser_upstreamremote in the checkout - create a
playwright-buildbranch and apply all playwright-required patches to it.
2. Developing a new change
You want to create a new branch off the playwright-build branch.
Assuming that you're under ./browser_patches/firefox/checkout:
$ git checkout -b my-new-feature playwright-build
$ # develop my feature on the my-new-feature branch ....
3. Exporting your change to playwright repo
Once you're happy with the work you did in the browser-land, you want to export it to the playwright repo.
Assuming that you're in the root of the playwright repo and that your browser checkout has your feature branch checked out:
$ ./browser_patches/export.sh firefox <path to checkout>
This script will:
- create a new patch and put it to the
./browser_patches/firefox/patches/ - update the
./browser_patches/firefox/UPSTREAM_CONFIG.shif necessary - bump the
./browser_patches/firefox/BUILD_NUMBERnumber.
If you omit the path to your checkout, the script will assume one is located at ./browser_patches/firefox/checkout
Send a PR to the Playwright repo to be reviewed.
4. Rolling Playwright to the new browser build
Once the patch has been committed, the build bots will kick in, compile and upload a new browser version to all the platforms. Then you can roll the browser:
$ node utils/roll_browser.js chromium 123456