fix with some account link.URL is null

fix with some account link.URL is null

Author: suppermancool

src/shared/components/Settings/Account/LinkedAccount/AddWebLink.jsx

@@ -63,7 +63,7 @@ export default class AddWebLink extends React.Component {
     const {
       allLinks,
     } = this.props;
-    return _.some(allLinks, link => link.URL.toLowerCase() === webLink.toLowerCase());
+    return _.some(allLinks, link => link.URL && (link.URL.toLowerCase() === webLink.toLowerCase()));
   }
 
   render() {

src/shared/components/Settings/Profile/ExternalLinks/AddWebLink.jsx

@@ -60,7 +60,7 @@ export default class AddWebLink extends React.Component {
     const {
       allLinks,
     } = this.props;
-    return _.some(allLinks, link => link.URL.toLowerCase() === webLink.toLowerCase());
+    return _.some(allLinks, link => link.URL && (link.URL.toLowerCase() === webLink.toLowerCase()));
   }
 
   render() {