Custom error pages for 404, 500 status codes

[GoogleCodeExporter]

This can be implemented either through Mongoose web server error handling mechanism, or through the OnLoadError() callback in CEF.

For now I see only use for it for 404 pages. But there might be other cases, like directory listing denial (500?). PHP errors can be handled via set_error_handler and set_exception_handler functions. Though we might support all 5xx status codes here as well.

Support for other error codes should be straightforward to add, see

phpdesktop/phpdesktop-chrome/web_server.cpp

Line 52 in 190fbae

// Called when mongoose is about to send HTTP error to the client.

See also related issues that are about friendly error messages:

• Issue Display friendly message for: "Error 500: Internal Server Error. CGI program sent malformed or too big (>16384 bytes) HTTP headers" #131
• Issue Display friendly error message when spawning CGI process fails #127

Original issue reported on code.google.com by czarek.t...@gmail.com on 8 May 2014 at 11:28