I do not understand this request:

"Idea for future @ChromeDevTools. Being able to filter assets in Network though a querying interface that includes asset attributes."

Any elaboration would be nice.

Hi, I'm the Twitter user with whom this issue was based on.

I feel it would be a useful addition to enhance the 'filter' mechanism in Network to include a querying interface, which would allow you to include existence and/or value checks from response headers.

For example, I'd like to generate a report of all assets that don't include `Content-Encoding: gzip` AND include `Set-Cookie`. Composing combination queries like this I feel would be hugely powerful during perf analysis.

I was just speaking today about this to chowse@. We have some ideas on how to do this and I'll probably begin a proposal/demo soon.

For now you can enter "has-response-header" into the filter bar on network log view and you can check the existence of a header. I do not believe we allow filtering on the header value though.

I am going to flag this as a duplicate because the solution solved with 468416 should also solve this.