[nwhitmore]

Which ad blockers provide for that header being sent? I've never seen it before and I can't find any information on it. Did you just make it up?

[BogusIKnow]

My answer was to your question:

"What header does your browser send to my server informing me that you are blocking ads so that I know to deny you my content?"

1. "Did you just make it up?" -> No.

2. "Which ad blockers provide for that header being sent?" -> Use a plugin in Firefox to set custom headers

3. Do website honor my header? -> Not yet.