1342740 - Regression: when copying image, Firefox sometimes gives invalid CF_HDROP, causing pasting problem in other programs

Status: RESOLVED DUPLICATE of bug 1340039

(Firefox :: General, defect)

Description

[fireattack [:fireattack]]

User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.74 Safari/537.36

Steps to reproduce:

STD:

1. Install Clipboard Format Spy (http://delphidabbler.com/software/cfs/main ) or any similar problem to investigate clipboard.

2. Open any Google Image search result or Twitter tweet with image, for example, this one: 

https://twitter.com/MacciattoS2/status/835711163681783808

3. Copy the embed image by right-click->"Copy image"

4. Check the CFS, find the entry "CF_DHROP", double-click.

5. You can see a file path which is supposed to locate in your temp folder.

What happened:

That file is a 0kB file. It's invalid and can't open.


What should happen:

That file should be a cached version of that image. Actually, if you use "Copy Image" from the image direct link page ( https://pbs.twimg.com/media/C5kK1u3UwAAWHJk.jpg:orig ), it will generate the correct file in your temp folder.

This will cause problem when pasting images into other applications when pasting images, if they rely on CF_HDROP. A famous example is QQ (the most popular instant messaging software in China).


This is a regression caused by changeset 71c8d652e638dd67c5c56879df83d76b30033458 https://hg.mozilla.org/integration/fx-team/pushloghtml?fromchange=46045ec8a4aa09a341b7209170089ade3c27c1a5&tochange=71c8d652e638dd67c5c56879df83d76b30033458

Mozregression log:

---
2017-02-26T01:27:55: INFO : [Child 18344] WARNING: pipe error: 109: file c:/builds/moz2_slave/fx-team-w64-000000000000000000/build/src/ipc/chromium/src/chrome/common/ipc_channel_win.cc, line 346
2017-02-26T01:27:55: INFO : [Child 18344] WARNING: pipe error: 109: file c:/builds/moz2_slave/fx-team-w64-000000000000000000/build/src/ipc/chromium/src/chrome/common/ipc_channel_win.cc, line 346
2017-02-26T01:27:57: INFO : Narrowed inbound regression window from [46045ec8, 2565f0ee] (3 revisions) to [46045ec8, 71c8d652] (2 revisions) (~1 steps left)
2017-02-26T01:27:57: DEBUG : Starting merge handling...
2017-02-26T01:27:57: DEBUG : Using url: https://hg.mozilla.org/integration/fx-team/json-pushes?changeset=71c8d652e638dd67c5c56879df83d76b30033458&full=1
2017-02-26T01:27:57: DEBUG : Found commit message:
Bug 1291009 - Fix closed caption button icon in hidpi mode. r=jaws

MozReview-Commit-ID: lDumJxyzTr

2017-02-26T01:27:57: INFO : The bisection is done.
2017-02-26T01:27:57: INFO : Stopped
---

Very likely caused by the fix in bug 664717

Comment 1

[fireattack [:fireattack]]

Just to clarify: by "by changeset" I mean changes between 46045ec8a4aa09a341b7209170089ade3c27c1a5 and 71c8d652e638dd67c5c56879df83d76b30033458. See the pushlog link.

Comment 2

[Hector Zhao [:hectorz]]

Hello, do you see browser console message similar to that in bug 1340039 comment 3? This might be a dupe.

Comment 3

[fireattack [:fireattack]]

Yes, it shows 

Content Security Policy: The page’s settings blocked the loading of a resource at https://pbs.twimg.com/media/C5kK1u3UwAAWHJk.jpg (“default-src https://twitter.com”).