Ionic-framework: v4 JS: click outside menu should close it (Edge)

[ghybs]

Bug Report

Ionic Info
Using @ionic/core version 4.0.0-alpha.10 directly from npm / unpkg CDN.
Firefox 61.0.1 (64 bits) on Win10 and on Ubuntu 16.04

Describe the Bug
When the menu is open, user can normally close it by clicking on the backdrop overlay (MD mode / overlay type) / main app content that remains visible (iOS mode / push and reveal types).
But since version alpha.8, this does not work in Firefox. Works fine in Chrome.

Steps to Reproduce
Steps to reproduce the behavior:

1. Go to https://beta.ionicframework.com/docs/api/menu with Firefox
2. Open the start menu by any mean (toggle button, swipe gesture...)
3. Click / touch the remaining main content (iOS mode) or backdrop overlay (MD mode) to try to close the menu
4. Menu does not close.

Direct link to demo app:
https://beta.ionicframework.com/docs/content/api//menu-demo.html?ionic:mode=md&ionic:statusbarPadding=true

This was working fine in alpha.7:
https://beta.ionicframework.com/docs/api/4.0.0-alpha.7/menu

Related Code
On Plunker: https://plnkr.co/edit/N662lbHFigjx3XS8gsjT?p=preview
(for some reason Plunker crashes on my Firefox 61, possibly due to trying its new "next" version).

Expected Behavior
When clicking / touching anywhere outside the menu (i.e. the backdrop overlay, or the remaining main content), the menu should close.

Additional Context
As first mentioned in https://github.com/ionic-team/ionic/issues/14701#issuecomment-404721569

[paulstelzer]

Can confirm - It's working in Chrome, but not in Firefox or Edge (this is an issue in beta.0, too) @brandyscarney

So you can only close the menu on Firefox with swiping or using the Menu Method close()

[paulstelzer]

It's working now in Firefox, not working in Edge

[paulstelzer]

Still not working in Edge

[codybeebework]

Should a new issue be created for this? Changing the title would work just as well.

It took me a while to find out if this was already reported for Edge. I didn't want to make a duplicate issue. I'm glad you all are already aware of the problem!

[paulstelzer]

@codybeebework Updated the title

[damsorian]

Any workaround for this? still does not work in v4.0.0 for Edge

[ionitron-bot[bot]]

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