src/service/viewport-impl.js
/**
   * Leaves frame lightbox mode if under a Friendly Iframe Embed.
   * @param {!Element} requestingElement
   * @visibleForTesting
   */
Leaves frame lightbox mode if under a Friendly Iframe Embed.
@param {!Element} requestingElement
@visibleForTesting
Leaves frame lightbox mode if under a Friendly Iframe Embed . @param { !Element } requestingElement @visibleForTesting
maybeLeaveFieLightboxMode(requestingElement) {
    const fieOptional = this.getFriendlyIframeEmbed_(requestingElement);
    if (fieOptional) {
      dev().assert(fieOptional).leaveFullOverlayMode();
    }
  }
maybeLeaveFieLightboxMode ( requestingElement ) { const fieOptional = this . getFriendlyIframeEmbed_ ( requestingElement ) ; if ( fieOptional ) { dev ( ) . assert ( fieOptional ) . leaveFullOverlayMode ( ) ; } }
Leaves frame lightbox mode if under a Friendly Iframe Embed.
Leaves frame lightbox mode if under a Friendly Iframe Embed .