Why does HTTP DELETE verb return 405 error - method not allowed for my RESTful WCF service running on IIS 7.5?

Question

Can anyone shed any light on this? I feel like I have wasted the entire day today hunting and searching the internet for any scrap of information about how to do this. I have created a very simple WCF RESTful service. It is basically a proof of concept. I have a simple database behind it and I am just trying to get it working so that I can view, create, update and delete items. Right now I only have view and update working. I'll tackle create later. For now I can't figure out why the delete doesn't work. Almost everything I have found so far tells me that I need to disable the WebDAV module. I did that and then I got PUT to work. But I can not get DELETE to work. Whenever I attempt to call DELETE through my service I get the following error:

The remote server returned an unexpected response: (405) Method Not Allowed.

So it seems like somewhere on my server it is not allowing the DELETE verb. But for the life of me I can not figure it out. I already checked the Handler Mappings and the handler allows all verbs for the .SVC extension. I have disabled WebDAV. I'm not really sure where else to look. I am using IIS 7.5 on Windows Server 2008 R2.

(I can provide code if it would help at all)

Thanks, Corey

Answer 1

In case anyone having the same issue.

Here is another way you can try.

in web.config

<system.webServer>     <modules>       <remove name="WebDAVModule" />     </modules>     <handlers>       <remove name="WebDAV" />      </handlers> </system.webServer>