IIS Not allowing put for one specific service

Question

We've done a fresh install of IIS 8.5 on a Windows server. On IIS we've deployed 4 or 5 WCF services.

Some of these services have PUT requests (delete will follow soon). But we run into an issue. On one of those services PUT returns "Method not allowed" 405 errors.

Now, note that the config for all the services regarding handlers is 100% the same (I've verified this a couple of times now).

Other services also consume PUT Requests, these also work fine. When I do a HEAD request with postman I can only see GET allowed for the request which should also exist as PUT.

(e.g. one has a WebGet attribute and one a WebInvoke configured with PUT) both on the same URI. Locally when debugging from Visual Studio, the PUT requests work fine, however, deployed we can't get it to work for this single endpoint.

The only difference I can see is that our PUT request which does not work consumes a JSON body, the other only looks at URI params...

https://stackoverflow.com/a/6223774/4074041 – May 26 '17 at 06:09 — , May 26 '17 at 06:09
I'll look into it, but WebDav is not installed – Mathijs Segers May 26 '17 at 06:10 — Mathijs Segers, May 26 '17 at 06:10

score 0 · Answer 1 · answered May 26 '17 at 06:15

0

You can add ExtensionlessUrlHandler through web.config like that:

<handlers accessPolicy="Read, Script">
   <remove name="WebDAV" />
   <remove name="ExtensionlessUrlHandler-ISAPI-4.0_64bit" />
   <add name="ExtensionlessUrlHandler-ISAPI-4.0_64bit"
      path="*."
      verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS"
      modules="IsapiModule"
      scriptProcessor="%windir%\Microsoft.NET\Framework64\v4.0.30319\aspnet_isapi.dll"
      preCondition="classicMode,runtimeVersionv4.0,bitness64"
      responseBufferLimit="0" />
</handlers>

answered May 26 '17 at 06:15

Yes I've tried this. Note that it DOES WORK for other services with same config – Mathijs Segers May 26 '17 at 06:18
so, i can offer you one **hard way**: check which handler get POST requests, and add into your web.config `custom httphandler` with standart IIS handler but allowing `PUT` request. – May 26 '17 at 06:23
I'll try to figure that out. – Mathijs Segers May 26 '17 at 06:35

IIS Not allowing put for one specific service

1 Answers1