[webkit-gtk] [Spam 6.20] Replace default error page

Gavin Lambert gavinl at compacsort.com
Sun Jan 15 18:44:50 PST 2012

Quoth Martin Rösch:
> I tried to replace the default error page by connecting to the
> "load-error" signal and do a webkit_web_view_load_uri call to a local
> html file. The handler looks like this:
> gboolean on_load_error(WebKitWebView  *web_view,
>                        WebKitWebFrame *web_frame,
>                        gchar          *uri,
>                        gpointer        web_error,
>                        gpointer        user_data)
> {
> 	g_debug("load-error: %s", uri);
> 	webkit_web_view_stop_loading(web_view);
> 	webkit_web_view_load_uri(WEBKIT_WEB_VIEW (web_view),
> "file://"DATADIR"/start.html");
> 	return TRUE;
> }
> When a load-error occurs the local file is displayed and everything is
> fine for about 15-20 mins. After that period, the handler gets called
> (with the uri set to the local file) hundreds of times immediately and
> every second afterwards until all memory is used up.
> It seems to me, that the load error is not cancelled correctly, and
> never will.

Most likely, you have a problem elsewhere (eg. memory fragmentation or leak,
file lock) preventing the load from working.

To prevent the infinite loop, you need to protect your load-error handler
such that if the error occurs in loading your error page, you fall back to
default handling instead of trying to load the same thing again (and getting

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