Thread:Project:Support desk/Problem with Encoding only in external links/reply (6)

It would be helpful to have a link to your wiki to see for myself. The output should definitely not differ between saved and preview. It also really should not have changed since 1.19 (As far as I know, the code hasn't changed).

Do you know how to look at HTTP headers of the request (You can do it via most browsers "developer" consoles). Check if the content-type header differs between saved and preview (Perhaps some sort of caching proxy could cause that, but it would be super weird). Check also the html output in a separate text editor (in order to verify the output is actually byte for byte different, and not just different because the web browser is detecting a different charset).

Last of all, check your php error log for any "Headers already sent" warnings.