// ==UserScript==
// @name        WhiteBG
// @namespace   iFantz7E.WhiteBG
// @version     1.12
// @description White background for pages that not set background color
// @include     *
// @run-at		document-start
// @grant       none
// @copyright   2016, 7-elephant
// ==/UserScript==
function attachOnLoad(callback)
{
window.addEventListener("load", function (e)
{
callback();
});
}
function attachOnReady(callback)
{
document.addEventListener("DOMContentLoaded", function (e)
{
callback();
});
}
function main()
{
if (window.parent === window && document.documentElement && document.body)
{
var bgHead = window.getComputedStyle(document.documentElement).backgroundColor;
if (bgHead === "transparent" || bgHead === "rgba(0, 0, 0, 0)")
{
var bgBody = window.getComputedStyle(document.body).backgroundColor;
if (bgBody === "transparent" || bgBody === "rgba(0, 0, 0, 0)")
{
document.documentElement.style.setProperty("background-color", "white", "important");
document.body.style.setProperty("background-color", "white", "important");
}
}
}
}
attachOnReady(main);