The specs for the "name" property of the different exception classes should be of the form NetworkError and not the code (NETWORK_ERR).
Upon searching for 'NETWORK_ERR' on searchfox.org (wubkat), I could only find following files (in .cpp): https://searchfox.org/wubkat/search?q=NETWORK_ERR&path=.cpp&case=false®exp=false Source/WebCore/Modules/mediastream/libwebrtc/LibWebRTCUtils.cpp Source/WebKit/UIProcess/API/glib/WebKitAuthenticationRequest.cpp ^ Mostly UIProcess and API Test files. I think we don't have do anything here but I will CC - @Anne to confirm and then we can close this.
Yeah, this has been refactored.