Chrome browser not accepting headers in scripts for HTTPS sites

When I do a test from a script that is for an HTTPS site, using Chrome and adding a header, the header doesn’t seem to be taken. I am seeing this in two ways: 1) you can’t see the header in the “headers” tab when you click on the base page in the waterfall; 2) in my case the header should be doing something to the website that is clearly visible in the waterfall and I’m not seeing it.

Here’s a sample script (I chose the header and URL arbitrarily):

addHeader Pragma: jeff-test

So I’m pretty sure this is a bug but there’s something I’m missing or if there’s a workaround for this, please advise.

Opened up an issue so I don’t lose track:

I’ll try to take a look later today.

Thanks Pat