expose content-length when downloading zips

[jimmywarting]

Hi, today i downloaded a zip from an artifact via some api.
I would like to present a visible progress bar and a est on how much time there is left, but it can't compute the download progress cuz it's lacking a content-length response header.

is that something you could add to the backend/api?
also i guess it would need to be added to the list of access-control-expose-headers

---

sry if this is the wrong place to ask for this kind of question. might be a bit off topic from what this repo is really about

[jimmywarting]

hmm, just found out that the size is exposed in: https://api.github.com/repos/{repo}/actions/runs/{id}/artifacts. (tiny bit inconvenient)
wished that content-length was added.

[jimmywarting]

retract that... it seems to be the unpacked size... needed the zip size

[jimmywarting]

Side question: Do you have any reason as for why HEAD isn't in this list as well?

access-control-allow-methods: OPTIONS,GET,POST,PATCH,PUT,DELETE

had to resort to a solution where i use GET + AbortSignal to abort the request upon getting the Headers