Closing tab gives you 'Unchecked runtime.lastError'

[luixxiul]

Describe the issue you encountered: Closing tab gives you Unchecked runtime.lastError while running guestViewInternal.destroyGuest: Unknown error.

• Platform (Win7, 8, 10? macOS? Linux distro?): Windows 10

• Brave Version (revision SHA): 0.15.310

• Steps to reproduce:

  1. Shift + F8
  2. Open a tab
  3. Close it

• Actual result: Unchecked runtime.lastError while running guestViewInternal.destroyGuest: Unknown error.

• Expected result: that error should not happen

• Extra QA steps:
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• Any related issues: Tearing off tab shows - Unchecked runtime.lastError while running guestViewInternal.destroyGuest: Unknown error - #8175

[bsclifton]

This is a known issue. @bridiver can give a specific explanation, but this has no negative impact. Preventing the error from being logged might be more work than its worth