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Published 20 hours ago • verified publisher icon vbauer

Black background in jpg

Open vanrzuf opened this issue 9 years ago • 7 comments

Hello, disabling images in manet makes screenshots with black background in jpg, jpeg. Is there any option to set background color by hand?

vanrzuf avatar Apr 24 '16 23:04 vanrzuf

@vanrzuf Hello, could you provide some URL which I can test? I've just checked to capture JPG from https://github.com/vbauer/manet and everything looked fine (http://localhost:8891/?url=https%3A%2F%2Fgithub.com%2Fvbauer%2Fmanet&images=false).

vbauer avatar Apr 30 '16 22:04 vbauer

Hi, sure. http://whos.amung.us/ is that nasty site. 01.05.2016 00:31 Vladislav Bauer [email protected] napisał(a):@vanrzuf Hello, could you provide some URL which I can test? I've just check to capture JPG from https://github.com/vbauer/manet and everything looks fine (http://localhost:8891/?url=https%3A%2F%2Fgithub.com%2Fvbauer%2Fmanet&images=false).

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vanrzuf avatar Apr 30 '16 23:04 vanrzuf

I've got the following results:

PhantomJS (http://localhost:8891/?url=http%3A%2F%2Fwhos.amung.us&images=false&engine=phantomjs):

image

SlimerJS (http://localhost:8891/?url=http%3A%2F%2Fwhos.amung.us&images=false&engine=slimerjs):

image

Are they wrong?

vbauer avatar May 01 '16 00:05 vbauer

Please check this ?url=http%3A%2F%2Fwhos.amung.us%2F&format=jpeg&images=false&engine=phantomjs in default PNG there is no background in the screenshot. With format set to jpg/jpeg background is black. 01.05.2016 02:04 Vladislav Bauer [email protected] napisał(a):I've got the following results:

PhantomJS (http://localhost:8891/?url=http%3A%2F%2Fwhos.amung.us&images=false&engine=phantomjs):

SlimerJS (http://localhost:8891/?url=http%3A%2F%2Fwhos.amung.us&images=false&engine=slimerjs):

Are they wrong?

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vanrzuf avatar May 01 '16 06:05 vanrzuf

Thank you for information. I reproduced the problem, but at the current moment I don't have any idea how to fix it. Probably we have some problem with PhantomJS engine...

vbauer avatar May 04 '16 20:05 vbauer

FYI, Interesting, I've just got locally another situation - background is transparent, not black Probably, it depends on the version of PhantomJs

vbauer avatar Feb 12 '17 05:02 vbauer

It happens when you don't set the height of a viewport and you are trying to take a screenshot of a bigger height than the content of a website. At that time blank background appears.

Below, I have taken the screenshot without setting the height of a viewport.

ffe6e99663ac758660bfc1e956320642e4b17ddd

Here's the screenshot in which I have set the height of a viewport.

2baac7dbc044a5b25a63a22cd39d7e9ff33b5d1b

malayladu avatar Sep 12 '17 04:09 malayladu