Accessing context.extensionn throws proposed API exception.

[dbaeumer]

Testing #119548

Not sure if it is expected. Was not mentioned in the test plan item.

[eamodio]

Was this with the latest build? I thought I removed that check.

[dbaeumer]

Build is:

Version: 1.55.0-insider (user setup)
Commit: 469e4f6
Date: 2021-03-22T05:14:19.452Z
Electron: 11.3.0
Chrome: 87.0.4280.141
Node.js: 12.18.3
V8: 8.7.220.31-electron.0
OS: Windows_NT x64 10.0.19043

[dbaeumer]

Works on latest.