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Power Platform Community / Forums / Power Automate / Http request failed as...
Power Automate
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Http request failed as there is an error: 'Received an invalid header name: 'Content-Security-Policy '.'.

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Posted on by JCBC

Hello, I have a HTTP step in a flow that works correctly, if I copy/recreate it identically in a new flow, I get the above error message, has anyone had this before and found the cause? 

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  • IkeJoshi Profile Picture
    IkeJoshi 2 on at

    Hi, The error seems to be not based on the request. Check the IIS application - response headers (not the Site), remove the "Content-Security-Policy" which will be inherited and try again. 

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