Can not read fb2 books through content server interface

[Pinkbyte]

As title says. I have built docker container (using custom Dockerfile) back in the days for Calibre 6 and everything worked fine. I rarely read books from content server interface, so i am not sure when it was broken (somewhere in 7.x release). When i click on 'Read' button for any FB2 book in library i have this error in browser:

"Could not open <book title>. Failed to read the file inline-styles.css for the book <book title> from the browser offline cache. This usually means the cache is close to full. Clear the browser cache from the browser settings."

Download button works fine. PDF books opens fine too.

Tried different browsers - no luck. No errors appear on server side either (on stderr stream of docker container).

Maybe i missed some dependencies in container?

Custom Dockerfile, used for building image attached

[Kovid Goyal (kovid)]

Fixed in branch master. The fix will be in the next release. calibre is usually released every alternate Friday.

[Kovid Goyal (kovid)]

Note that you will have to clear the browser cache and reload the book
for the fix to work.