Deproxy gMail images onError

If loading of gMail-proxied image fails, changes it's SRC to original

K instalaci tototo skriptu si budete muset nainstalovat rozšíření jako Tampermonkey, Greasemonkey nebo Violentmonkey.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Userscripts.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat manažer uživatelských skriptů.

(Už mám manažer uživatelských skriptů, nechte mě ho nainstalovat!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(Už mám manažer uživatelských stylů, nechte mě ho nainstalovat!)

// ==UserScript==
// @name        Deproxy gMail images onError
// @description If loading of gMail-proxied image fails, changes it's SRC to original
// @namespace   http://eldar.cz/myf/
// @include     https://mail.google.com/*
// @version     1.0.0
// @grant       none
// ==/UserScript==
;(function()
{	"use strict"
;	deproxy_gmail_images();
;	function deproxy_gmail_images()
	{	var rxg = /.*?googleusercontent.*?#/
		,	prevent_propname = 'already tried to deproxy this image, move along'
	;	document.body.addEventListener
		(	'error'
		,	handleResourceError
		,	true
		)
	;	function handleResourceError(e)
		{	var el = e.target
		;	if( !el || !el.tagName || 'IMG' != el.tagName || el[prevent_propname] )
				return
		;	el[prevent_propname] = true
		;	if( rxg.test(el.src) )
				el.src = el.src.replace(rxg, '')
		}
	}
})();