IE Clipboard Access Prompt; On allow hits: Unable to get property 'plugins' of undefined or null reference

[ghost]

Type of report

Bug

Provide detailed reproduction steps (if any)

Setup steps:

1. use IE 11 (this is Internet Explorer specific issue)
2. Ckeditor "samples" hosted in IIS; Put the ckeditor access site in Trusted sites.
3. Make sure the default level for Clipboard access is Prompt
   Scripting > Allow Programmatic clipboard access -> Prompt

Steps to reproduce:

1. Use Paste icon to trigger prompt call
2. On IE prompt: "Do You want to allow this webpage to access your Clipboard"
3. Press "Allow access"

Expected result

After prompt Allow action the clipboard is pasted

Actual result

The content is pasted. But it triggers also undefined exception in selection,js
: Unable to get property 'plugins' of undefined or null reference
line 1974 (v4.14.0 full source)
editor.plugins.tableselection
editor is undefined

Other details

• Browser: Internet Explorer 11.1098.17763.0
• OS: Windows 10 1809; IIS 10.0.17763.1
• CKEditor version: 4.13.1; 4.14.0
• Installed CKEditor plugins:
  Using this build configuration, with defines plugins
  build-config.txt

The error is reproducible on samples from the Build source

Thoughts on the condition
I see that on-line 2085 the editor is checked also for undefined condition.

So I wonder

• if this place (line 1974) is amiss for undefined check
• or it is some other context initialization error in case of broken clipboard access flow

[Comandeer]

Yes, it seems that it's a regression introduced in #3241. Adding simple check if editor is undefined should be enough.

[f1ames]

Fixed in 7468d1c.