Question url rewrite without .html

[Ade Adwitya]

i plan to change my url rewrite from (example) :

5 Petenis Paling Seksi Di Dunia : | Ceriwis - Indonesian Community

to this:

Ceriwis - Indonesian Community

as you can see i plan to remove the ".html" at the of url. i could do it easily but the problems are all the indexed page on google are with ".html"
and when i access it without ".html" it will return me:
"Invalid Attachment specified. If you followed a valid link, please notify the administrator"

can you please provide me the htacess and nginx rewrite to make visitors redirected to the clean url(without .html) everytime they accessed the ".html" url ?

thank you.

 

[Fillip H.]

Unfortunately you will not be able to do what you want, because your non-HTML Thread URL format conflicts with your Attachment URL format.

For the record, when you change URL formats in DBSEO, it automatically redirects. You do not need us to provide you with redirect rules. That being said, you should not change the URL formats to what you want, as it will not work.