I display the wiki extract on my site.
It worked well but for some time, the extract appears only for a part of requests.
The message returned is:
"HTML may be malformed and / or unbalanced and may be omitted inline images.Use: http://www.mediawiki.org/wiki/Extension:TextExtracts#Caveats."
Here is a request that returns this message:
And another request, the extract is displayed well (but the warning is present):
Thanks for your help.