I have a core search results web part.
This has been deployed to a staging environment with an external url of X.
Using Google Chrome & the external URL I can access the site and run searches on a custom scope / content source and everything runs perfectly.
However, when using IE9 or IE10 on the external URL I get an error within the webpart saying:
"Property doesn't exist or is used in a manner inconsistent with schema settings."
This is a server side error - this has nothing to do with CSS as it can be seen when inspecting the source.
The properties are quite clearly configured correctly, and this is evidenced in the fact that it browses fine in Chrome. This is also evidenced in the fact that the same web part runs perfectly fine when browsing the internal server url when on the server (using IE9) http://servername
There are no errors reported to ULS.
Any help would be appreciated in pointing me in a direction.
Can this happen if alternate access mappings are not configured correctly?