I have tried many tutorials but I am still not able to figure out how to create Sharepoint surveys for which anonymous people can respond to.
Anonymous users can see the survey web part and the response button. But when an anonymous user clicks the button, it asks for a login within a popup. If the user clicks cancel, the page becomes blank with "401 UNAUTHORIZED" message.
I have enabled anonymous access for the web application, site collection and site. I have done the step of setting unique permissions on the survey list and letting anonymous users read and edit and add all responses.
I am still now able to solve it. Thanks in advance for any help. Even pointers to articles or books are appreciated.