Ionic 4 Old page overlays over current page after navigation

Bug Report

Ionic Info Run ionic info from a terminal/cmd prompt and paste the output below.

Ionic:

   ionic (Ionic CLI)          : 4.1.2 (/home/prasun/.npm-global/lib/node_modules/ionic)
   Ionic Framework            : @ionic/angular 4.0.0-beta.3
   @angular-devkit/core       : 0.7.4
   @angular-devkit/schematics : 0.7.4
   @angular/cli               : 6.1.4
   @ionic/ng-toolkit          : 1.0.6
   @ionic/schematics-angular  : 1.0.5

Cordova:

   cordova (Cordova CLI) : 8.0.0
   Cordova Platforms     : android 7.0.0, browser 5.0.4
   Cordova Plugins       : cordova-plugin-ionic-keyboard 2.1.2, cordova-plugin-ionic-webview 2.0.2, (and 9 other plugins)

System:

   Android SDK Tools : 26.1.1 (/home/prasun/Android/Sdk)
   NodeJS            : v8.12.0 (/usr/bin/node)
   npm               : 6.4.0
   OS                : Linux 4.15

Describe the Bug After a few page navigations, when I navigate to the home page using angular’s router navigate, one of the following things happen:

1. The navigation works fine.
2. A previous page in the navigation stack overlays the current page
3. A previous page in the navigation stack overlays the current page but is invisible. Because of this, the user can’t tap anywhere the overlay page has elements.

Upon further investigation, I’ve found that this happens because the app-home has a z-index of 99 whereas the previous page has a z-index of 100

Here, app-home is the current page, but the pages above it in the navigation stack are causing problems

Expected Behavior Other pages which are not in the route should not overlay the current page

[hiepxanh]

Test on Emulator device part 2:

• Android 4.4, API level 19, chrome version 30 error:

• Android 5, chorme version 39 error:

• Android 6, chrome version 44:

• Android 7, chrome 55: working without ion-page-invisible

[ionitron-bot[bot]]

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