I can confirm that update to 2.3 and 2.3.1 was absolute nightmare. I get the same errors as @awtown. It is too risky for me to update, and I am staying with 2.2.

Link to example page: http://www.tsarevo.info/nastanqvane/semeini-hoteli/semeinite-hoteli-v-tsarevo/hotel-morska-gradina/

Hi,

I am not a tagDiv team member, but will try to explain the situation with Speed Booster. I think I get it correctly.

In the ideal situation all css files will load in header and all js files in footer for webpage speed. This is what is recommended and what Speed Booster is trying to do. But this is not required rule and every plugin or theme developer can follow it or not. If some plugin or theme is loading js files in header, this is because plugin’s author created it this way and if Speed Booster move it in footer, the plugin may stop working properly.

If you want SB to work properly and not to break your site, then you have to modify (or ask authors to modify) each plugin or theme, which are not following the good coding practices. Speed Booster itself is only trying to rearrange files positions, it is not a caching or minify plugin, so you can run your website without it too 🙂

I hope this info will help you to understand the situation about SB. And I am sure that if you have installed only tagDiv’s product, the plugin will work.

Thank you for your attention,
Mladen

Thanks for the reply,

Yes, I see now that Speed Booster has been disabled for a reason. When I force it to be enabled, some plugins stop working 🙂
I have no further question about this topic.

Best regards,
Mladen

I am experiencing the same problem, but because of Vaulpress plugin, which is created by WordPress creators and can not be codded badly. How can we activate Speed Booster?
Thanks.