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Issue 768193 link

Starred by 1 user
Status: Available
Owner: ----
Cc:
pdr@chromium.org
█ ranjitkan@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux , Windows , Mac
Pri: 2
Type: Bug



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HTML Drag and Drop API: drag feedback image generated incorrectly

Reported by matt.e.g...@gmail.com, Sep 24 2017 
UserAgent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/61.0.3163.100 Safari/537.36

Steps to reproduce the problem:
1. Load the attached html file (dragImageIncorrect.html)
2. Begin dragging the "basket"
3. notice the drag feedback image the browser generated

What is the expected behavior?
The drag feedback image should look just like the styled div

What went wrong?
The drag feedback image looks different from the styled div. In particular, it seens the perspective and possibly rotateX transforms are applied incorrectly to generate the image

Did this work before? N/A 

Does this work in other browsers? Yes

Chrome version: 61.0.3163.100  Channel: stable
OS Version: Ubuntu 16.04
Flash Version: 

I attached two screenshots, one showing Chrome being incorrect while Firefox (55.0.2) generates the drag image correctly.
dragImageIncorrect.html
1.1 KB View Download
firefox_correct.png
64.6 KB View Download
chromeDrag_incorrect.png
39.8 KB View Download

Comment 1 by matt.e.g...@gmail.com, Sep 24 2017 

Also related, Chrome picks up the background color of the parent div in the drag image, but Firefox does not. Firefox's drag image is a better representation. I've attached dragImageIncorrect_withBackground.html to demonstrate. In Chrome, the drag image will have red on either side, where as Firefox doesn't.

Comment 2 by matt.e.g...@gmail.com, Sep 24 2017 

Oops, dragImageIncorrect_withBackground.html was slightly incorrect. I've attached a fixed version. My comment about the red background still stands.
dragImageIncorrect_withBackground_fixed.html
1.2 KB View Download

Comment 3 by nyerramilli@chromium.org, Sep 25 2017

Labels: Needs-Triage-M61

Comment 4 by ranjitkan@chromium.org, Sep 25 2017

Cc: ranjitkan@chromium.org
Components: Blink>HTML
Labels: M-63 OS-Mac OS-Windows
Status: Untriaged (was: Unconfirmed)
Able to reproduce the issue on 61.0.3163.100 on Windows 10, Mac 10.12.6, Ubuntu 14.04. Issue is a non regression as observed from M50 builds 50.0.2624.0. 

Untriaged it so that it gets addressed.

Thanks.!

Comment 5 by tkent@chromium.org, Sep 28 2017

Components: -Blink>HTML Blink>DataTransfer

Comment 6 by jsb...@chromium.org, Oct 3 2017

Status: Available (was: Untriaged)

Comment 7 by dcheng@chromium.org, Oct 3 2017

Cc: pdr@chromium.org

Comment 8 by peridotp...@gmail.com, Aug 22 

I was able to reproduce the issue in comment 2 (red background dragging with the image) on Chrome Canary 70.0.3530.0 on MacOS.
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