fix(info): respect path when linking to dial in page

react/features/invite/components/info-dialog/InfoDialog.web.js

@@ -268,8 +268,29 @@ class InfoDialog extends Component {
      * @returns {string}
      */
     _getDialInfoPageURL() {
-        return `${window.location.origin}/static/dialInInfo.html?room=${
-            encodeURIComponent(this.props._conferenceName)}`;
+        const origin = window.location.origin;
+        const encodedConferenceName
+            = encodeURIComponent(this.props._conferenceName);
+        const pathParts = window.location.pathname.split('/');
+
+        // More than two parts implies the path consists of more than the first
+        // forward slash and the meeting name. If that is the case, drop the
+        // last segment of the path, which we assume is the meeting name. This
+        // is necessary when is hosted on a url with a path.
+        if (pathParts.length > 2) {
+            pathParts.length = pathParts.length - 1;
+        }
+
+        const newPath = pathParts.reduce((accumulator, currentValue) => {
+            if (currentValue) {
+                return `${accumulator}/${currentValue}`;
+            }
+
+            return accumulator;
+        }, '');
+
+        return `${origin}${newPath}/static/dialInInfo.html?room=${
+            encodedConferenceName}`;
     }
 
     /**