Add the clipboard read permission for widgets

src/components/views/elements/AppTile.tsx

@@ -550,7 +550,8 @@ export default class AppTile extends React.Component<IProps, IState> {
 
         // Additional iframe feature permissions
         // (see - https://sites.google.com/a/chromium.org/dev/Home/chromium-security/deprecating-permissions-in-cross-origin-iframes and https://wicg.github.io/feature-policy/)
-        const iframeFeatures = "microphone; camera; encrypted-media; autoplay; display-capture; clipboard-write;";
+        const iframeFeatures = "microphone; camera; encrypted-media; autoplay; display-capture; clipboard-write; " +
+            "clipboard-read;";
 
         const appTileBodyClass = 'mx_AppTileBody' + (this.props.miniMode ? '_mini  ' : ' ');
         const appTileBodyStyles = {};