When opening a file within the "Files" plugin in Roundcube, I get the following error in the console:
Failed to load resource: the server responded with a status of 404 (Not Found) https://webmail.xxx.eu/assets/program/resources/blank.tiff
In seems to come from /usr/share/chwala/public_html/js/files_api.js (line 566):
img.src = this.env.resources_dir + '/blank.tiff';
I think, it should be:
img.src = this.env.resources_dir + '/blank.tif';
After the change, Chrome did not complain any more.
My chwala version: chwala-0.5-12.1.el7.kolab_16.noarch
I don't know exactly whether this is a chwala issue, so please let me know, if you need the version of some other package.