Show all headers in Download Tool

[Hiblet]

Using the Download Tool, when doing a PUT operation, the tool adds a header "Transfer-Encoding: chunked".  The tool adds this silently in the background.

This caused me a huge headaches, as the PUT was a file transfer to Azure Blob Storage, which was not chunked.  At time of writing Azure BS does not support chunked transfer.  Effectively, my file transfer was erroring, but it appeared that I had configured the request correctly.  I only found the problem by downloading Fiddler and sniffing the HTTPS traffic.

Azure can use SharedKey authorization.  This is similar to OAuth1, in that the client (Alteryx) has to encrypt the message and the headers sent, so that the Server can perform the same encryption on receipt, and confirm that the message was not tampered with.  Alteryx is effectively "tampering with the message" (benignly) by adding headers.  To my mind, the Download tool should not add any headers unless it is clear it is doing so.

If the tool adds any headers automatically, I would suggest that they are declared somewhere.  They could either be included in the headers tab, so that they could be over-written, or they could have an "auto-headers" tab to themselves.  I think showing them in the Headers tab would be preferable, from the users viewpoint, as the user could immediately see it with other headers, and over-ride it by blanking it if they need to.

[KylieF]

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