Conflict dialogue doesn't show preview for new file any more

[oparoz]

Steps to reproduce

1. Upload an image
2. Upload it again

Expected behaviour

The conflict dialogue should show me the image twice

Actual behaviour

I only see one image
On the left, there is a blank icon

Server configuration

Operating system: FreeBSD

Web server: Apache 2.4

Database: MariaDB 10.1

PHP version: 7.0.18

Nextcloud version: master

Updated from an older Nextcloud/ownCloud or fresh install: rolling

Where did you install Nextcloud from: git

[MorrisJobke]

On the left, there is a blank icon

What request is made and what is the response?

[oparoz]

No HTTP request is being made. The preview is generated in browser iirc. It receives a data stream data:image/png;base64...

[rullzer]

I just tested on latest master. It works just fine here...

[MorrisJobke]

I tested this in chrome, firefox and safari. All works fine. Please state the browser you have used and then we can look into this. Until then: Not reproducible and close ;)

[oparoz]

Thanks for checking. It was due to the fact that I'm blocking canvas fingerprinting on my standard browser, so of course this doesn't work... I have to remember to use a vanilla browser for testing...