This signal is emitted when a #WebKitUserMessage is received from the
#WebKitWebContext corresponding to @extension. Messages sent by #WebKitWebContext
are always broadcasted to all #WebKitWebExtension<!-- -->s and they can't be
replied to. Calling webkit_user_message_send_reply() will do nothing.
This signal is emitted when a #WebKitUserMessage is received from the #WebKitWebContext corresponding to @extension. Messages sent by #WebKitWebContext are always broadcasted to all #WebKitWebExtension<!-- -->s and they can't be replied to. Calling webkit_user_message_send_reply() will do nothing.