Menu not working in ionic-lab ios


i have a simple menu that works everywhere but not in ionic-lab iOS Emulator.

I’m using Firefox on Windows 10.

Here is the Code:

<ion-navbar color="primary">

<button ion-button menuToggle icon-only>
  <ion-icon name='menu'></ion-icon>



<ion-menu [content]="mycontent">
  <button ion-item (click)="goToPageEvents()">
  <button ion-item (click)="goToPageImpressum()">

<ion-nav #mycontent [root]=“rootPage”>

Hier kommen die neusten Beiträge hin...

What exactly is working, what is not?

The menu dont be shown when I touch the menu button. But only in the ios
emulator in ionoc lab.

Under Android and Windows the menu slides in.