This article is way too long, and very sloppy.

Here's the section with the prompt injection headers. They all look like jokes / non-serious attempts to me, bar the ones that included the Claude 4 era refusal triggering string. https://www.signalscorps.com/blog/prompt-injection-in-http-h...

The drop table header seems like a prank to me. You would need to have sql that is vulnerable to injection. If you're using an llm, and have sql that is vulnerable to inject... what am I running an llm for.