Save progress to database on every page change in epub reader

[dydyamotya]

Hello!

My girlfriend wants to read the book both on her smartphone and laptop, and she wants it to be synchronized between both devices. So, I made this addition to online epub reader.

I also saw a couple of requests for feature before on the net, so this could be popular improvement.

Please check if it is ok for the project.

Thank you for your attention.

[1447262390]

This feature is very useful, thank you

[linonetwo]

will this work for txt? #2946

[Zwixx]

will this work for txt? #2946

No, it only works with epub

[OzzieIsaacs]

I don't think this is good idea, as it creates a lot of write actions on the database (I will also revert this for the comic reader)