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Forum Discussion

Waloo5's avatar
Waloo5
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Apr 18, 2025

Change Content-Type from application/octet-stream to multipart/form-data

Hi all, If some one has experiance an integration of ASM and ICAP server : Our HTTP POST requests are using Content-Type: application/octet-stream, and for the ASM Antivirus ICAP functionality the ...
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Waloo5's avatar
Waloo5
Icon for Nimbostratus rankNimbostratus
Apr 21, 2025

Hello zamroni777​ ,

Thank you for your feedback.

To clarify, our application does include an HTML form submission with files upload functionality, where the developer has set the Content-Type to application/octet-stream. However, F5 ASM does not allow this integration in its current form expects multipart/form-data.

Since modifying the application is not an option, I would like to explore whether an iRule can be implemented on the F5 to:

  1. Intercept the request.
  2. Modify the Content-Type header from application/octet-stream to multipart/form-data.
  3. Ensure the file payload remains intact during the transformation.

Could some one confirm if this is feasible via an iRule or another F5 configuration?