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Issue 734337 link

Starred by 4 users
Status: Assigned
Owner:
dgozman@chromium.org
Cc:
ligim...@chromium.org
jmukthavaram@chromium.org
Components:
EstimatedDays: ----
NextAction: ----
OS: All
Pri: 2
Type: Bug



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Page.captureScreenshot doesn't give result for inactive tabs

Reported by d.szy...@outlook.com, Jun 17 2017 
UserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36

Steps to reproduce the problem:
1. Create new tab with http://localhost:9222/json/new
2. Connect with websocket to given endpoint
3. Run Page.navigate with param url set to https://google.com
4. Wait for Page.loadEventFired
5. Change active tab with http://localhost:9222/json/activate/id
6. Run Page.captureScreenshot
7. Method doesn't give anything back

What is the expected behavior?
Page.captureScreenshot should work for inactive tabs

What went wrong?
Page.captureScreenshot doesn't return anything when called on inactive tab

Did this work before? No 

Chrome version: 61.0.3133.0  Channel: canary
OS Version: 10.0
Flash Version:

Comment 1 by ranjitkan@chromium.org, Jun 19 2017

Labels: Needs-Triage-M61

Comment 2 by ligim...@chromium.org, Jun 19 2017

Cc: ligim...@chromium.org
Labels: Needs-Bisect

Comment 3 by chenwilliam@chromium.org, Jun 19 2017

Owner: dgozman@chromium.org
Status: Assigned (was: Unconfirmed)
@dgozman, is this intended behavior?

Comment 4 by jmukthavaram@chromium.org, Jun 21 2017

Cc: jmukthavaram@chromium.org
Labels: Needs-Feedback
d.szymon@ Thanks for filing the issue.

"This site can’t be reached"  error displayed while accessing above provided (step 1 ) URL-http://localhost:9222/json/new on Windows 7 ,Mac 10.12.5 & Ubuntu 14.04.
Are you running any web server along with this?If yes,Is there any another way to reproduce this issue using html files Please Confirm and provide the same to proceed further.

Comment 5 by d.szy...@outlook.com, Jun 21 2017 

Sorry, I forgot to mention that you have to start Chrome with flag --remote-debugging-port=9222

DevTools remote client can not be done in browser context due to security limitations, to reproduce it I'm using attached js file (requires packages "ws" and "fetch") with node.js
app.js
1.1 KB View Download

Comment 6 by d.szy...@outlook.com, Jun 21 2017 

Also, step 5 says "Change active tab with http://localhost:9222/json/activate/id" 
id should be replaced with id (from http://localhost:9222/json/list) of another page. 

Alternatively you can open new or change active tab with Chrome's GUI.

Comment 7 by dgozman@chromium.org, Jul 13 2017

Labels: -OS-Windows -Needs-Feedback -Needs-Bisect OS-All
This is a current screenshots implementation problem. We'll try to fix that, thanks for the report!
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