1283191 - (ServiceWorkers-streams) [meta] Service worker streaming

Status: NEW

(Core :: DOM: Service Workers, enhancement, P3)

Description

[Ben Kelly [:bkelly, not reviewing]]

One of the main use cases for streams right now is in service workers.  Even with streams API support, though, we have a number of issues to solve to make streams work well in service workers.  There are a number of places we stop to accumulate data or otherwise don't handle streams quite right.  This meta bug is to track fixing these issues.

Comment 1

[Gabriel Wicke]

Stream support in ServiceWorkers is becoming quite important to us at Wikimedia. We recently prototyped streaming HTML composition in a ServiceWorker (see  https://github.com/wikimedia/web-stream-util and https://github.com/wikimedia/node-serviceworker). First performance results in Chrome look really attractive, with reductions in time-to-useful-page especially on slow connections. To provide similar speed-ups & offline support in Firefox, we will need

- a body stream returned from fetch,
- stream support in caches,
- the ability to construct & return a ReadableStream from a ServiceWorker.

Comment 2

[Ben Kelly [:bkelly, not reviewing]]

I agree we need someone working on this, but unfortunately I don't have the bandwidth right now.

Comment 3

[Andrew Overholt [:overholt]]

Marking all [meta] bugs as P3.

Comment 4

[Jens Stutte [:jstutte]]

I assume, we still want to complete this. :asuth, can you check if the dependencies are up to date?

Comment 5

[Andrew Sutherland [:asuth] (he/him)]

Deps are up-to-date although we will probably need to file some additional bugs when we really dig into the architecture of this, but that's a multi-day affair. (Maybe this should happen as part of the architectural review?)