JS/JQuery: add copyright text on copy event

add-copyright-on-copy-jquery.js

	jQuery( document ).ready( function( $ )
	{
		function addLink()
		{
			var sel = window.getSelection();
			var pagelink = "<br /><br /> Source: <a href='" + document.location.href + "'>" + document.location.href + "</a><br />© text is here";
			var div = $( '<div>', {style: {position: 'absolute', left: '-99999px'}, html: sel + pagelink} );
			$( 'body' ).append( div );
			sel.selectAllChildren( div[0] );
			div.remove();
		}

		document.oncopy = addLink;
	} );

add-copyright-on-copy.js

function addLink() {
	var body_element = document.getElementsByTagName('body')[0];
	var selection;
	selection = window.getSelection();
	var pagelink = "<br /><br /> Read more at: <a href='"+document.location.href+"'>"+document.location.href+"</a><br />Copyright &copy; text is here"; // change this if you want
	var copytext = selection + pagelink;
	var newdiv = document.createElement('div');
	newdiv.style.position='absolute';
	newdiv.style.left='-99999px';
	body_element.appendChild(newdiv);
	newdiv.innerHTML = copytext;
	selection.selectAllChildren(newdiv);
	window.setTimeout(function() {
		body_element.removeChild(newdiv);
	},0);
}
document.oncopy = addLink;

jquery example give an error...

BrowserLocker: checkFramesTimer() content_script.js:92

• iframe:
  [ERROR] checkForNewIframe: SecurityError: Failed to read the 'contentDocument' property from 'HTMLIFrameElement': Blocked a frame with origin "http://www.exampledomain.com" from accessing a cross-origin frame.