jeena/en.javascript.info
1
0
Fork 0
Code Issues Pull requests Projects Packages Wiki Activity Actions

Update article.md

Browse source
This commit is contained in:
LeviDing 2020-11-13 22:53:12 +08:00 • committed by GitHub
parent 806e3710e5
commit fb43e39bd4
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
1 changed files with 2 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

4
5-network/06-fetch-api/article.md
View file

@ -217,8 +217,8 @@ Normally, when a document is unloaded, all associated network requests are abort
It has a few limitations: It has a few limitations:
- We can't send megabytes: the body limit for `keepalive` requests is 64kb. - We can't send megabytes: the body limit for `keepalive` requests is 64KB.
- If we need to gather a lot of statistics about the visit, we should send it out regularly in packets, so that there won't be a lot left for the last `onunload` request. - If we need to gather a lot of statistics about the visit, we should send it out regularly in packets, so that there won't be a lot left for the last `onunload` request.
- This limit applies to all `keepalive` requests together. In other words, we can perform multiple `keepalive` requests in parallel, but the sum of their body lengths should not exceed 64kb. - This limit applies to all `keepalive` requests together. In other words, we can perform multiple `keepalive` requests in parallel, but the sum of their body lengths should not exceed 64KB.
- We can't handle the server response if the document is unloaded. So in our example `fetch` will succeed due to `keepalive`, but subsequent functions won't work. - We can't handle the server response if the document is unloaded. So in our example `fetch` will succeed due to `keepalive`, but subsequent functions won't work.
- In most cases, such as sending out statistics, it's not a problem, as server just accepts the data and usually sends an empty response to such requests. - In most cases, such as sending out statistics, it's not a problem, as server just accepts the data and usually sends an empty response to such requests.