IIS 7.5 WARN: No metatags found - works on apache server


Hello great people of Twitter. How are you all today? I enjoyed a nice bowl of porridge for breakfast and recently had an apple, this was closely followed by an orange… But enough about me…

I am having issues with the validator and our IIS server.
html file on IIS 7.5 -
http://www.wales.nhs.uk/ogdata/media.html get the error - no meta tags found.
exactly the same file on Apache -
This validates fine.

Can anyone throw any light on this please?




It is something to do with the way that your IIS server is responding to our cards crawler’s user-agent (Twitterbot).

If I try curl -A Twitterbot http://www.wales.nhs.uk/ogdata/media.html the resulting page is a standard 404 / not found HTML page. Omitting the user-agent returns the page with the markup as expected. It might be an issue with request filtering in IIS.


Thanks Andy. I will take a look and get back to you!


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