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Debugging 403 Forbidden: Fixing Header Order

Submitted by TheMekanic at 27-02-2026, 09:46 PM


DIAMOND Debugging 403 Forbidden: Fixing Header Order
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The Goal: Many high-security sites (like those behind Akamai) check the order of your headers. If
Accept

comes before

User-Agent

but the real browser does the opposite, you get a 403.

The Steps:
  1. The Blueprint: Open your browser's Network tab and look at the "Request Headers."
  2. Manual Ordering: In OpenBullet/SilverBullet, don't use the default header blocks. Use the Custom Headers block.
  3. Exact Replica: Add the headers one by one in the exact order shown in the browser.
  4. Case Sensitivity: Ensure headers like
    Content-Type
    are capitalized exactly as the server expects.

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Debugging 403 Forbidden: Fixing Header Order - by TheMekanic - 27-02-2026, 09:46 PM


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