diff --git a/src/components/views/dialogs/HostSignupDialog.tsx b/src/components/views/dialogs/HostSignupDialog.tsx
index 829d18cf1e..ff354bb74a 100644
--- a/src/components/views/dialogs/HostSignupDialog.tsx
+++ b/src/components/views/dialogs/HostSignupDialog.tsx
@@ -251,7 +251,7 @@ export default class HostSignupDialog extends React.PureComponent<IProps, IState
                                 <iframe
                                     src={this.config.url}
                                     ref={this.iframeRef}
-                                    sandbox="allow-forms allow-scripts allow-same-origin"
+                                    sandbox="allow-forms allow-scripts allow-same-origin allow-popups"
                                 />
                             }
                         </div>