[webkit-gtk] WebKitWebView Process has Dock and task-switcher icons

[jralls at ceridwen.fremont.ca.us]

In WebKitGtk 2.28.2 when built with GdkQuartz on macOS, the WebKitWebProcesses, one for each GtkWebKitWebView, produce tiles in the dock and the process-switcher (the bar of icons that comes up when you press command-tab) and a menubar. Worse, that's the process that gets focus when you start an application or create a new tab.

This is reproducible with the MiniBrowser. It's been observed with both MacPorts and Gtk-OSX builds and there's even an unanswered Stack Overflow question: https://stackoverflow.com/questions/62918922/webkitwebprocess-makes-new-dock-icons.

Any ideas on how to suppress this odd behavior?

Regards,
John Ralls