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Regular Visitor

HTTP request with Content-type not supported



I created a flow in Power Automate, and when I run a specific HTTPS request (GET method) with the HTTP module :

I get an error message in response : "Content-type '' not supported"

However I have the following Headers:

"Accept-Version": "V2",
"Authorization": "Bearer @{body('Analyser_JSON')?['access_token']}",
"Content-Type": "application/json",
"Accept": "application/json",
"OData-MaxVersion": "4.0",
"OData-Version": "4.0",
"If-None-Match": "null"


I specify that the request works very well on a Postman environment and in this flow other requests to the same API also work.

Has anyone ever faced this problem?
Thanks for your feedback.

Super User
Super User

Hi @Jhasbrouck 


This usually works for me:


"content-type" :"application/json;odata=verbose"


But there is also a good article here


If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

P.S. take a look at my new blog here

Regular Visitor

Thanks for your return.
I tried with this Content-type and unfortunately I still have the problem ...

In Postman, the query always works with this Content-Type.

It is as if the value of my Content-Type disappeared when sending the request.

Not applicable

@Jhasbrouck Were you able to find a solution? I am having a similar problem with my HTTP action failing due to the content-type not supported.

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