add 'maxHeaderSize' to 'http2'

[rexagod]

This is a feature request for adding maxHeaderSize in http2 as quoted below

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Sounds good to me – maxHeaderSize could be added along with that. 👍

Originally posted by @addaleax in #32388 (comment)

[himself65]

-1 on this, as I said #32388 (comment)

[addaleax]

@himself65 I don’t see any issues with adding an alias for parity between HTTP/1 and HTTP/2. Having that will make things easier for users, and I think that’s worth the (very small) increase in option complexity.

[preyunk]

Willing to take up this issue, would be great if I could get some guidance.

[rexagod]

@preyunk I was thinking about working on this, but if you're interested, go ahead! Post your doubts regarding build/ci/code/etc and I'll clarify those for you. ✌️

[preyunk]

@rexagod I explored the file structure and according to me the related code must be in lib/http.js and lib/internal/http2/util.js or lib/internal/http2/core.js right?

[preyunk]

Also please help me with the part of code which needs to be changed or where the code needs to be added.

[rexagod]

@preyunk To clarify, maxHeaderSize will be an "alias" for maxHeaderListSize and its addition will contribute towards maintaining a similar developer experience between HTTP/1 and HTTP/2 (by matching the API in HTTP/1(maxHeaderSize) to HTTP/2(maxHeaderListSize)) . The code you should be looking for (maxHeaderListSize) can be found in util.js and core.js.

[rexagod]

maxHeaderSize: https://nodejs.org/docs/latest-v14.x/api/http.html#http_http_maxheadersize
maxHeaderListSize: https://nodejs.org/docs/latest-v14.x/api/http2.html#http2_settings_object

[preyunk]

@rexagod so I made changes in util.js and core.js adding an option maxHeaderSize which is same as maxHeaderListSize.

[preyunk]

@rexagod can you check if I am doing the right thing?