message: Fix Persisted Widgets (Jitsi) randomly closing on room change
diff: -/**
  +/*
  Copyright 2017 Vector Creations Ltd
  Copyright 2018 New Vector Ltd
  +Copyright 2019 Michael Telatynski <7t3chguy@gmail.com>
  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  @@ -15,8 +16,6 @@ See the License for the specific language governing permissions and
  limitations under the License.
  */
  -'use strict';
  -
  import url from 'url';
  import qs from 'querystring';
  import React from 'react';
  @@ -155,8 +154,9 @@ export default class AppTile extends React.Component {
  // Widget action listeners
  dis.unregister(this.dispatcherRef);
  + const canPersist = this.props.whitelistCapabilities.includes('m.always_on_screen');
  // if it's not remaining on screen, get rid of the PersistedElement container
  - if (!ActiveWidgetStore.getWidgetPersistence(this.props.id)) {
  + if (canPersist && !ActiveWidgetStore.getWidgetPersistence(this.props.id)) {
  ActiveWidgetStore.destroyPersistentWidget();
  const PersistedElement = sdk.getComponent("elements.PersistedElement");
  PersistedElement.destroyElement(this._persistKey);
  @@ -575,11 +575,10 @@ export default class AppTile extends React.Component {
  src={this._getSafeUrl()}
  allowFullScreen="true"
  sandbox={sandboxFlags}
  - onLoad={this._onLoaded}
  - ></iframe>
  + onLoad={this._onLoaded} />
  </div>
  );
  - // if the widget would be allowed to remian on screen, we must put it in
  + // if the widget would be allowed to remain on screen, we must put it in
  // a PersistedElement from the get-go, otherwise the iframe will be
  // re-mounted later when we do.
  if (this.props.whitelistCapabilities.includes('m.always_on_screen')) {
  