When running Chrome, there are some useful command line arguments.

You can inform wpt of the release channel of Chrome using --channel. However, wpt currently does not support installing Chrome or finding the Chrome binary of a specific channel, so you would also need to specify the path to the Chrome binary with --binary. For example, to run Chrome Dev on Linux:

./wpt run --channel dev --binary `which google-chrome-unstable` chrome

Note: when the channel is “dev”, wpt will automatically enable all experimental web platform features (chrome://flags/#enable-experimental-web-platform-features) by passing --enable-experimental-web-platform-features to Chrome.

If you want to enable a specific runtime enabled feature, use --binary-arg to specify the flag(s) that you want to pass to Chrome:

./wpt run --binary-arg=--enable-blink-features=AsyncClipboard chrome clipboard-apis/