http fetch gives different status than network?

Question

I must be doing something wrong, but I am trying to ping a service until I get a 200 response. When I look in the network tab in my browser (chrome), I get a 304:

However, when I print out the following code:

const s1 = await fetch(`./${cluster}/api`) const s2 = await fetch(`./${cluster}/dashboard`) console.log(s1.status, s2.status)

I get:

It's hard to read sorry, but it says 200 200.

Why do I get a 200 when I check the status, but a 304 in the network tab?

Alberto · Accepted Answer · 2021-05-27 00:23:44Z

4

As you can see from here (scroll down to "redirect):

Normally, fetch transparently follows HTTP-redirects, like 301, 302 etc.

fetch follows HTTP redirects, so you are getting a 304, fetch will then load the page from cache, since a 304 Not Modified means that the cached page is still valid.

Also work reading https://developer.mozilla.org/en-US/docs/Web/HTTP/Redirections#special_redirections

edited May 27, 2021 at 0:23

answered May 27, 2021 at 0:14

Alberto

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5 Comments

Phil Over a year ago

Just a clarification, for a 304 Not Modified, the browser will load from cache. I don't think there's any "new URL" involved

Alberto Over a year ago

@Phil yes you're right, I'll edit the question with the clarification, thank you

Adam Johnston Over a year ago

I can ask this as a different question if needed, but is there a way to get the 304 back? I tried setting to manual and error as shown in the link to no avail. Still 200.

Alberto Over a year ago

@AdamJohnston you can probably set redirect to manual, check this developer.mozilla.org/en-US/docs/Web/API/Fetch_API/…

Adam Johnston Over a year ago

Still 200, oh well. I can figure out another way to do this. Thanks again.

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