<ul><li>PUT and DELETE HTTP verbs in IIS may not work when deployed on a Windows server with IIS.</li><li>This issue is caused by the default installation of WebDAV (Web Distributed Authoring and Versioning) in IIS, which intercepts and blocks PUT and DELETE requests.</li><li>To fix this, you can uninstall/remove WebDAV completely at the machine level or disable it just for your application by editing the web.config file.</li><li>Disabling or removing WebDAV will allow the PUT and DELETE requests to reach your application and work as expected.</li></ul>

PUT and DELETE HTTP Verbs in IIS Not Working? Here’s Why (and How to Fix It)

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