We have built a webspart that pulls back user comments based on a SP2010 URL using SPServices 0.5.8 GetCommentsUrl method.
It has been working great with authenticated users but now we are looking at providing anonymous access comments are no longer returned.
Looking in fiddler I can see a 500 error on the call to the webservice /_vti_bin/SocialDataService.asmx and the soap envelope returned contains the following:
<?xml version="1.0" encoding="utf-8"?><soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><soap:Body><soap:Fault><faultcode>soap:Server</faultcode><faultstring>Server
was unable to process request. ---> Attempted to perform an unauthorized operation.</faultstring><detail /></soap:Fault></soap:Body></soap:Envelope>
I have read the blog with regards anonymous users and the changes put into 0.5.3 release which seems to suggest that read only webservice calls should work ok with anonymous users but...
Any help would be appreciated