{cache: "no-cache"} vs Cache-Control: immutable

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#308 opened on May 21, 2016 12 comments 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty: 5/5
Estimated time: Over a week
Newbie friendliness: 25/100

Issue type: Feature
Clarity: Mostly clear
Activity status: Stale
Tech stack: html
Domain: api, web-dev

Research direction

Read the Fetch Standard's cache-handling rules and the linked immutable proposal first. Determine whether fetch(aURLWithImmutableCache, {cache: "no-cache"}) should make a conditional request or use the cached response directly; done means the standard resolves this conflict and documents the chosen behavior.

Written by the indexing model from the issue text.

Description

topic: http

Firefox 49 implemented a new extended attribute of the Cache-Control response header - immutable, it has not been standardized yet, see this post for the details.

So here is the conflict: should fetch(aURLWithImmutableCache, {cache: "no-cache"}) send a conditional request first or use the cache directly without sending any request? Currently Firefox's behavior is the latter.

Dominant language: HTML
Stars: 2.3k
Forks: 403
Avg merge: 21h 16m
Merged PRs (30d): 4

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