it can't work with chinese url

You’re right, I haven’t done any testing in languages other than English. I’ll get to work on that right away and respond here.

On the off chance that I misunderstood you, I want to be sure that you are aware that you need to use the Prefix check box if you want a https://123.com/category URL given to the plugin to also apply to https://123.com/category/post

I think that I have been able to re-create this problem on my test system, where the Prefix facility of the plugin fails with the Chinese language category given in the following scenario:

1. Permalinks Custom Structure: website URL followed by /%category%/%postname%/
2. Prefix specified to plugin as website URL followed by slash then Chinese language category slug
3. Post specified as website URL /category/postname displays on Active Theme, not Theme specified in plugin Prefix entry

I will work to resolve this ASAP.

This problem will be fixed in the next version of the Plugin, hopefully available in the next few days. This problem only occurs for encoded characters in the domain name or path, and is somewhat random.

Every URL comparison in the plugin must be reviewed. At present, %E7 is not comparing as equal to %e7. I am deciding whether to add rawurldecode() to every comparison or to store URLs already decoded.

Thank you for your patience.

Version 4.1 of this plugin has just been released. It addresses this problem, and I am not aware of any outstanding issues with Chinese characters in URLs. So, please let me know if you run into any problems.