Those were just workarounds for browser-specific bugs, they should be
fixed upstream.
* individual mouse down/up/down/up events don't trigger dblclick event
in Firefox
* setContent throws when document.open/write is called in the utility
context in Firefox
This pull request introduces initial support for the WebDriver BiDi
protocol in Playwright. The primary goal of this PR is not to fully
implement BiDi but to experiment with the current state of the
specification and its implementation. We aim to identify the biggest
gaps and challenges that need to be addressed before considering BiDi as
the main protocol for Playwright.