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[Bug 1574371] [NEW] Launching pre-install Amazon app on Ubuntu 16.04 causes the webbrowser-app to start but it flashes uncontrollably until quit

To: ubuntu-webapps-bugs@xxxxxxxxxxxxxxxxxxx
From: Nikita Yerenkov-Scott <1574371@xxxxxxxxxxxxxxxxxx>
Date: Sun, 24 Apr 2016 19:51:35 -0000
Reply-to: Bug 1574371 <1574371@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
Public bug reported:

I have recently found that when launching the pre-installed Amazon app
on Ubuntu 16.04 that it launches the webbrowser-app which flashes
uncontrollably until quit. When running it in Terminal with "unity-
webapps-runner --amazon --app-id=ubuntu-amazon-default" the first output
was:

    ** (unity-webapps-runner:2246): WARNING **: Could not get a proper accuracy from Geoclue (NONE)
    ** Message: Launching webapp container for url 'http://www.amazon.com/?tag=u1webapp-20' and app_id 'ubuntu-amazon-default (command line 'webapp-container --app-id='ubuntu-amazon-default' --webapp --enable-back-forward   http://www.amazon.com/?tag=u1webapp-20')

After which it went back to '$', but then started giving more output and
did so until I quit the browser which flashed uncontrollably and could
not be made to do anything or display any pages:

    OpenGL Warning: glXCreatePbuffer not implemented by Chromium
    Invalid webapp webapp definition: homepage not found or fails predicate isString
    Could not open manifest file:  "/usr/share/unity-webapps/userscripts/unity-webapps-amazon/manifest.json"
    qml: Loading webview on /home/tester/.local/share/ubuntu-amazon-default
    Invalid webapp webapp definition: homepage not found or fails predicate isString
    Could not open manifest file:  "/usr/share/unity-webapps/userscripts/unity-webapps-amazon/manifest.json"
    QQmlExpression: Expression file:///usr/share/webbrowser-app/webcontainer/WebApp.qml:272:25 depends on non-NOTIFYable properties:
        unity::action::qml::ActionManager::globalContext
    qml: Loaded 5 UA override(s) from file:///usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Web/ua-overrides-mobile.js
    qml: Start browsing
    file:///usr/share/webbrowser-app/webcontainer/ContentPickerDialog.qml:22:1: module "Ubuntu.Content" is not installed
    file:///usr/share/webbrowser-app/webcontainer/ContentDownloadDialog.qml:22:1: module "Ubuntu.Content" is not installed
    file:///usr/share/webbrowser-app/ContentHandler.qml:20:1: module "Ubuntu.Content" is not installed
    file:///usr/share/webbrowser-app/Downloader.qml:22:1: module "Ubuntu.DownloadManager" is not installed
    file:///usr/share/webbrowser-app/Downloader.qml:23:1: module "Ubuntu.Content" is not installed
    file:///usr/share/webbrowser-app/Downloader.qml:22:1: module "Ubuntu.DownloadManager" is not installed
    file:///usr/share/webbrowser-app/Downloader.qml:23:1: module "Ubuntu.Content" is not installed
    qml: Loaded 5 UA override(s) from file:///usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Web/ua-overrides-desktop.js
    [0424/203404:ERROR:layer_tree_host_impl.cc(2263)] Forcing zero-copy tile initialization as worker context is missing
    [0424/203404:ERROR:buffer_manager.cc(361)] [.CommandBufferContext.Context-For-Testing-0x558d4431d000]GL ERROR :GL_INVALID_ENUM : glBufferData: <- error from previous GL command
    [0424/203408:ERROR:texture_manager.cc(2278)] [.CommandBufferContext.RenderCompositor-0x369c907eec00]GL ERROR :GL_INVALID_ENUM : glTexImage2D: <- error from previous GL command
    [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_ENUM : GLES2DecoderImpl::DoBindTexImage2DCHROMIUM: <- error from previous GL command
    [0424/203408:ERROR:gles2_cmd_decoder.cc(2113)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_OPERATION : ScopedTextureBinder::ctor: was unhandled
    [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203409:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203409:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203409:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203409:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203409:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203409:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203409:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203409:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203409:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203409:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203409:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203409:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203409:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203409:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203409:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203409:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [PERFORMANCE]: Last frame took 36 ms to render.
    [0424/203409:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203410:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203410:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203410:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203410:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203410:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203410:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203410:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203410:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203410:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203410:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203410:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203411:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203411:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203411:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203411:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203411:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203411:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203411:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203411:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203411:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203411:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203411:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203411:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203412:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203416:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203416:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203417:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203417:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203417:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203418:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203418:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203418:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    [0424/203418:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
    OpenGL Warning: glXCreatePbuffer not implemented by Chromium

For you to make better sense of what I've said I have attached a
screencast to this bug report of what happens. The machine was an Ubuntu
16.04 64-bit machine in a VirtualBox VM.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: unity-webapps-common 2.4.17+15.10.20150616-0ubuntu2
ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
Uname: Linux 4.4.0-21-generic x86_64
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
Date: Sun Apr 24 20:40:12 2016
InstallationDate: Installed on 2016-04-23 (1 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
PackageArchitecture: all
SourcePackage: webapps-applications
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: webapps-applications (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: webbrowser-app (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug xenial

** Attachment added: "unity_webbrowser-app_Flashing_Errors.mp4"
   https://bugs.launchpad.net/bugs/1574371/+attachment/4645820/+files/unity_webbrowser-app_Flashing_Errors.mp4

** Also affects: webbrowser-app (Ubuntu)
   Importance: Undecided
       Status: New

-- 
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Ubuntu.
https://bugs.launchpad.net/bugs/1574371

Title:
  Launching pre-install Amazon app on Ubuntu 16.04 causes the
  webbrowser-app to start but it flashes uncontrollably until quit

Status in webapps-applications package in Ubuntu:
  New
Status in webbrowser-app package in Ubuntu:
  New

Bug description:
  I have recently found that when launching the pre-installed Amazon app
  on Ubuntu 16.04 that it launches the webbrowser-app which flashes
  uncontrollably until quit. When running it in Terminal with "unity-
  webapps-runner --amazon --app-id=ubuntu-amazon-default" the first
  output was:

      ** (unity-webapps-runner:2246): WARNING **: Could not get a proper accuracy from Geoclue (NONE)
      ** Message: Launching webapp container for url 'http://www.amazon.com/?tag=u1webapp-20' and app_id 'ubuntu-amazon-default (command line 'webapp-container --app-id='ubuntu-amazon-default' --webapp --enable-back-forward   http://www.amazon.com/?tag=u1webapp-20')

  After which it went back to '$', but then started giving more output
  and did so until I quit the browser which flashed uncontrollably and
  could not be made to do anything or display any pages:

      OpenGL Warning: glXCreatePbuffer not implemented by Chromium
      Invalid webapp webapp definition: homepage not found or fails predicate isString
      Could not open manifest file:  "/usr/share/unity-webapps/userscripts/unity-webapps-amazon/manifest.json"
      qml: Loading webview on /home/tester/.local/share/ubuntu-amazon-default
      Invalid webapp webapp definition: homepage not found or fails predicate isString
      Could not open manifest file:  "/usr/share/unity-webapps/userscripts/unity-webapps-amazon/manifest.json"
      QQmlExpression: Expression file:///usr/share/webbrowser-app/webcontainer/WebApp.qml:272:25 depends on non-NOTIFYable properties:
          unity::action::qml::ActionManager::globalContext
      qml: Loaded 5 UA override(s) from file:///usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Web/ua-overrides-mobile.js
      qml: Start browsing
      file:///usr/share/webbrowser-app/webcontainer/ContentPickerDialog.qml:22:1: module "Ubuntu.Content" is not installed
      file:///usr/share/webbrowser-app/webcontainer/ContentDownloadDialog.qml:22:1: module "Ubuntu.Content" is not installed
      file:///usr/share/webbrowser-app/ContentHandler.qml:20:1: module "Ubuntu.Content" is not installed
      file:///usr/share/webbrowser-app/Downloader.qml:22:1: module "Ubuntu.DownloadManager" is not installed
      file:///usr/share/webbrowser-app/Downloader.qml:23:1: module "Ubuntu.Content" is not installed
      file:///usr/share/webbrowser-app/Downloader.qml:22:1: module "Ubuntu.DownloadManager" is not installed
      file:///usr/share/webbrowser-app/Downloader.qml:23:1: module "Ubuntu.Content" is not installed
      qml: Loaded 5 UA override(s) from file:///usr/lib/x86_64-linux-gnu/qt5/qml/Ubuntu/Web/ua-overrides-desktop.js
      [0424/203404:ERROR:layer_tree_host_impl.cc(2263)] Forcing zero-copy tile initialization as worker context is missing
      [0424/203404:ERROR:buffer_manager.cc(361)] [.CommandBufferContext.Context-For-Testing-0x558d4431d000]GL ERROR :GL_INVALID_ENUM : glBufferData: <- error from previous GL command
      [0424/203408:ERROR:texture_manager.cc(2278)] [.CommandBufferContext.RenderCompositor-0x369c907eec00]GL ERROR :GL_INVALID_ENUM : glTexImage2D: <- error from previous GL command
      [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_ENUM : GLES2DecoderImpl::DoBindTexImage2DCHROMIUM: <- error from previous GL command
      [0424/203408:ERROR:gles2_cmd_decoder.cc(2113)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_OPERATION : ScopedTextureBinder::ctor: was unhandled
      [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203408:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203409:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203409:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203409:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203409:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203409:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203409:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203409:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203409:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203409:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203409:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203409:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203409:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203409:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203409:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203409:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203409:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [PERFORMANCE]: Last frame took 36 ms to render.
      [0424/203409:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203410:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203410:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203410:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203410:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203410:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203410:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203410:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203410:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203410:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203410:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203410:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203411:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203411:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203411:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203411:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203411:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203411:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203411:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203411:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203411:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203411:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203411:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203411:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203412:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203416:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203416:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203417:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203417:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203417:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203418:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203418:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203418:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      [0424/203418:ERROR:gles2_cmd_decoder.cc(2109)] [.CommandBufferContext.RenderWorker-0x369c907ee180]GL ERROR :GL_INVALID_VALUE : ScopedTextureBinder::dtor: <- error from previous GL command
      OpenGL Warning: glXCreatePbuffer not implemented by Chromium

  For you to make better sense of what I've said I have attached a
  screencast to this bug report of what happens. The machine was an
  Ubuntu 16.04 64-bit machine in a VirtualBox VM.

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: unity-webapps-common 2.4.17+15.10.20150616-0ubuntu2
  ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
  Uname: Linux 4.4.0-21-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2
  Architecture: amd64
  Date: Sun Apr 24 20:40:12 2016
  InstallationDate: Installed on 2016-04-23 (1 days ago)
  InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
  PackageArchitecture: all
  SourcePackage: webapps-applications
  UpgradeStatus: No upgrade log present (probably fresh install)

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Follow ups

[Bug 1574371] Re: Launching pre-install Amazon app on Ubuntu 16.04 causes the webbrowser-app to start but it flashes uncontrollably until quit
From: Paul White, 2021-08-07
[Bug 1574371] Re: Launching pre-install Amazon app on Ubuntu 16.04 causes the webbrowser-app to start but it flashes uncontrollably until quit
From: Olivier Tilloy, 2016-04-25