1898734 - Duplicating a tab while a DLP request is active prevents the page from loading

Status: NEW

(Firefox :: Data Loss Prevention, defect)

Description

[Bianca Hidecuti, Desktop Test Engineering [:bhidecuti]]

Attachment: bandicam 2024-05-24 14-46-04-412.mp4

Found in

• 128.0a1 (2024-05-23)

Affected versions

• 128.0a1 (2024-05-23)

Preconditions

• Download the DLP test assets from https://drive.google.com/file/d/1yjqVRuxdKV3WnO7D2wzMgDXBuYBxUgVw/view
• Create a distribution folder inside the Firefox folder and paste the policies-1.json to it and then rename it to policies.json

Tested platforms

• Affected platforms: Windows 10/11
• Unaffected platforms:Ubuntu 22.04, macOS 12.6.6

Steps to reproduce

1. Navigate to yahoo.com
2. Open up a document in an external program (for example Notepad) and type “sample text” into it and copy it
3. Return to Firefox and paste the “sample text” into the search bar at the top of the page
4. Duplicate the tab without interacting with the “You’re not permitted..” dialog
5. Open the duplicated tab and observe the behavior

Expected result

• yahoo.com webpage is loading

Actual result

• yahoo.com webpage is not loading

Regression range

• This is not a regression as this is a new feature

Additional notes

• See the attached video
• The page is loading after dismissing the dialog from the first tab
• Also reproducing while the sample DLP agent is running

Comment 1

[Greg Stoll :gstoll]

This might be fixed by the fix to bug 1898718, fwiw

Comment 2

[Greg Stoll :gstoll]

Also worth trying if we duplicate a tab while the "DLP busy" dialog is showing. We think this should work OK though.

Comment 3

[Bianca Hidecuti, Desktop Test Engineering [:bhidecuti]]

Verified this using Firefox Nightly 128.0a1, build ID 20240529214854 on Windows 11 and the duplicated tab is now loading if duplicating it while the "You're not permitted.." blocked dialog is shown.
However, the issue still persists if duplicating the tab while the "Scan in progress" / "This content may be unsafe" dialogs are shown.

@gstoll, should we file a separate issue for the DLP busy dialogs or reopen this one? Thank you in advance!

Comment 4

[Greg Stoll :gstoll]

We can leave this issue open tracking the "Scan in progress" / "This content may be unsafe" dialogs case. Thanks!

Comment 5

[Greg Stoll :gstoll]

To be clear, the duplicated page does seem to load as expected whenever those dialogs go away. Not ideal but probably not a 1.0 blocker.