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HTTP action isn't limiting data set or returning headers with Range in Power Automate (cloud) - possible bug

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Posted on by hmclean_blkb

This issue is happening specifically when the initial HTTP GET request includes the “Range” header as discussed at https://learn.microsoft.com/en-us/azure/logic-apps/logic-apps-handle-large-messages#download-content-in-chunks .

I have confirmed via Postman that the endpoint accessed (Azure Blob Storage) does respond to Range requests.

The issue is that it doesn’t seem like the HTTP action is sending this Header in the GET as the entire dataset is being returned regardless of the Range submitted. In addition, though in most cases using the HTTP action return/display the Headers in the response, it is not in this particular scenario.

Flow screenshot:

Flow error with range.png

Post-Run screenshot. No Headers returned. As an extreme example, did a range of 0-1 and the $content is obviously more than a 2 bytes.

Flow no headers.png

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Expiscornovus 33,855 Most Valuable Professional on at

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Hi @hmclean_blkb,

It is not mentioned as one of the Headers which are omitted/ignored by the HTTP action, according to this doc:

https://learn.microsoft.com/en-us/azure/connectors/connectors-native-http#omitted-http-headers

However, my suggestion would be to still double check with Microsoft support if you want to keep using the HTTP action.

Alternatively, have you tried creating/using a Custom connector? That gives you a lot more options.

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chrisclos 2 on at

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Did you ever figure out the solution on this? Running into same thing.

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