Editor: Prevent adding `javascript:` and `data:` URLs through the inline link dialog.

Merge of [41393] to the 4.1 branch.

Built from https://develop.svn.wordpress.org/branches/4.1@41407


git-svn-id: http://core.svn.wordpress.org/branches/4.1@41240 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/js/wplink.js

@@ -210,6 +210,13 @@ var wpLink;
 
 			attrs = wpLink.getAttrs();
 
+			var parser = document.createElement( 'a' );
+			parser.href = attrs.href;
+
+			if ( 'javascript:' === parser.protocol || 'data:' === parser.protocol ) { // jshint ignore:line
+				attrs.href = '';
+			}
+
 			// If there's no href, return.
 			if ( ! attrs.href || attrs.href == 'http://' )
 				return;
@@ -223,7 +230,7 @@ var wpLink;
 			}
 
 			if ( attrs.target ) {
-				html += ' target="' + attrs.target + '"';
+				html += ' rel="noopener" target="' + attrs.target + '"';
 			}
 
 			html += '>';
@@ -275,6 +282,13 @@ var wpLink;
 
 			link = editor.dom.getParent( editor.selection.getNode(), 'a[href]' );
 
+			var parser = document.createElement( 'a' );
+			parser.href = attrs.href;
+
+			if ( 'javascript:' === parser.protocol || 'data:' === parser.protocol ) { // jshint ignore:line
+				attrs.href = '';
+			}
+
 			// If the values are empty, unlink and return
 			if ( ! attrs.href || attrs.href == 'http://' ) {
 				editor.execCommand( 'unlink' );