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I'm trying to do an ajax POST in an mvc 5.0 WebApi web application. Can do a GET just fine but when I try to update a field using GET that has a large amount of data I get the 405 error.

Am I on the right track or am I looking in the wrong direction?

Also is there any good/simple web.config options reference?


What I have tried:

I've tried many different options in the web.config file pertaining to WebDAV, including completely removing it; 1) In the "Turn Windows features on or off", removing it in web.config file and configuring it. This is what I currently have in my web.config file;
  <authentication mode="None" />
  <compilation debug="true" targetFramework="4.5.1" />
  <httpRuntime targetFramework="4.5.1" />
  <trust level="Full" />
  <modules runAllManagedModulesForAllRequests="true">
    <remove name="FormsAuthentication" />
    <remove name="WebDAV" />
    <add name="WebDAV" path="*" verb="*" modules="WebDAVModule" resourceType="Unspecified" requireAccess="None" />
Updated 6-Feb-17 22:32pm
Richard Deeming 2-Feb-17 14:53pm
"... update a field using GET ..."

GET requests shouldn't update anything. :)
Mike Hankey 2-Feb-17 15:01pm
I realize that but when POST, PUT won't work and GET does I have to use it until I can solve this problem. The GET will work but have a cap, I believe of 2K or so, so I have to save in smaller chunks.

Please check below code api example for 405 example hope its help you.
Update just an FYI for those in a like position, found a solution after much gnashing of teeth;

Add to web.config;

<modules runAllManagedModulesForAllRequests="false">
  <remove name="WebDAVModule" />
<validation validateIntegratedModeConfiguration="false" />
  <remove name="WebDAV" />
  <remove name="ExtensionlessUrlHandler-ISAPI-4.0_32bit" />
  <remove name="ExtensionlessUrlHandler-ISAPI-4.0_64bit" />
  <remove name="ExtensionlessUrlHandler-Integrated-4.0" />
  <add name="ExtensionlessUrlHandler-ISAPI-4.0_32bit" path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" modules="IsapiModule" scriptProcessor="%windir%\Microsoft.NET\Framework\v4.0.30319\aspnet_isapi.dll" preCondition="classicMode,runtimeVersionv4.0,bitness32" responseBufferLimit="0" />
  <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" />
  <add name="ExtensionlessUrlHandler-Integrated-4.0" path="*." verb="GET,HEAD,POST,DEBUG,PUT,DELETE,PATCH,OPTIONS" type="System.Web.Handlers.TransferRequestHandler" preCondition="integratedMode,runtimeVersionv4.0" />

and even after that it did not work so after more research I found that you can only pass one parameter in an ajax post. After I changed that everything worked great.

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