Exception - The page you are requesting cannot be served because of the extension configuration. If the page is a script, add a handler. If the file should be downloaded, add a MIME map


Sathish Nadarajan
SharePoint MVP
Published On :   24 Jul 2017
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I was writing a Remote Event Receiver and when trying to access, the exception “The page you are requesting cannot be served because of the extension configuration. If the page is a script, add a handler. If the file should be downloaded, add a MIME map” Occurred. Thought of sharing the solution to the community.

1. Go to Server Manager.

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2. Click on Manage -> Add Roles and Features.

3. On the Features, make sure that all the features under WCF is selected and install.

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4. Do an IISReset.

5. Refresh the Service.

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Now, the service will be working as expected. Thanks.

Happy Coding,

Sathish Nadarajan.

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