Hello everyone, I recently built a web page generation service using Cloudflare Agents, which suppor

Hello everyone, I recently built a web page generation service using Cloudflare Agents, which supports online editing. I'd like to share it .

project url: https://github.com/mggger/WebCraft

GitHub

GitHub - mggger/WebCraft: Web builder AI-Agent

Web builder AI-Agent . Contribute to mggger/WebCraft development by creating an account on GitHub.

WWang Hello everyone, I recently built a web page generation service using Cloudflare ...

Cyb3r-Jak3•3/24/25, 3:36 AM

You should post this in #what-i-built

Kevin•3/24/25, 6:29 AM

hey wondering if anyone's solved the network connection lost error whenever reading from an server sent event stream on a subrequest. I have a way to reproduce the error, and it is very frustrating because cloudflare doesn't document this behavior anywhere about subrequests workers-and-pages-help"Error: Network connection lost." on SSE subrequest idling for 100 seconds between events

Kevin•3/24/25, 6:30 AM

why does it just time out a sub request if SSE events get sent for 100 seconds?

confused mf•3/24/25, 12:19 PM

Cloudflare with supabase integration is broken, I get a 400 error when I try oauth

21givenchy•3/24/25, 1:16 PM

can someone assist me with the edge runtime do I specify it in everypage on nextjs

21givenchy•3/24/25, 1:24 PM

on existing projects

Rahul gangotri•3/24/25, 6:47 PM

Can someone please help me on this

No one replied till now, i am stuck

workers-and-pages-helpWorker route not working

Silvan•3/24/25, 8:23 PM

uhm is it normal that .dev.vars are inside your server bundle? :AL_yEthinkHmm:

SSilvan uhm is it normal that .dev.vars are inside your server bundle? :AL_yEthinkHmm:

Hard@Work•3/24/25, 8:59 PM

What framework is that?

HHard@Work What framework is that?

Silvan•3/24/25, 9:00 PM

well happened to me on svelte worker assets but same happens with https://github.com/cloudflare/agents-starter
if you add a .dev.vars in the root

GitHub

GitHub - cloudflare/agents-starter: A starter kit for building ai a...

A starter kit for building ai agents on Cloudflare - cloudflare/agents-starter

KKevin why does it just time out a sub request if SSE events get sent for 100 seconds?

Kevin•3/24/25, 10:01 PM

any thoughts on sub request just closign networ connection lost after 100 seconds? it doesn't make sense to time this out for a backend request thats making a long running request

Tobias•3/24/25, 11:34 PM

Is there any way I to get custom domains without a zone on cloudflare working on Workers w/ Static Assets? I've only noticed just now and it's too late to go back - impossible to get the domain on Cloudflare.

wot•3/25/25, 12:54 AM

are worker "frameworks" replacing pages?

KKevin any thoughts on sub request just closign networ connection lost after 100 second...

Chaika•3/25/25, 1:31 AM

The Cloudflare wide Proxy Read Timeout is 100 seconds https://developers.cloudflare.com/fundamentals/reference/connection-limits/, if your backend is that slow you'll need to speed it up, have it use a job style where it returns that it's running and to poll for status, etc. For SSE specifically, I haven't tried it but there's a few posts mentioning it kind of works and that 524's only trigger if nothing is sent within 100s

TTobias Is there any way I to get custom domains without a zone on cloudflare working on...

Chaika•3/25/25, 1:33 AM

Not if you have no zones at all. If you have at least one, even just a throwaway/random ones, can use CF For SaaS: https://developers.cloudflare.com/cloudflare-for-platforms/cloudflare-for-saas/start/advanced-settings/worker-as-origin/ and have your real custom domain CNAME to it, which then would run your worker. More meant for full SaaS cases though. It's the same thing Pages uses under the hood

Wwot are worker "frameworks" replacing pages?

Chaika•3/25/25, 1:35 AM

Frameworks is just their list of guides in the docs, "Workers Static Assets" is the underlying replacement, allowing Workers to support static assets just like Pages. CF has said before they plan on offering more migration steps in the future to Workers Static Assets from Pages, but eventually they will converge

TDat•3/25/25, 3:05 AM

Unable to preview your Worker

matt•3/25/25, 4:00 AM

if a worker connects to a cloudflare tunnel endpoint, and there's a WAF rule to block any non-worker traffic, eg.

BLOCK cf.worker.upstream_zone != "my.domain"

BLOCK cf.worker.upstream_zone != "my.domain"

how much latency should both the WAF rule & cloudflare tunnel be adding?

Chaika•3/25/25, 4:29 AM

waf should be too small to measure, tunnel is more complex. I'd make sure you're connecting to a nearby PoP (

example.com/cdn-cgi/trace

example.com/cdn-cgi/trace

on your tunnel hostname) and in your tunnel logs, that your tunnel is connecting to a nearby location as well, not too related to Workers though

masd4•3/25/25, 5:14 AM

if the worker memory limit is 128mb, wouldn't I run into that if I use the kv store .list() operation and retrieve 1280 keyvalue items with a size of 100kb? I mean those string values get loaded into memory if I .get() them all one by one in a for loop? I guess the GC would be able to start running if that's how it works in a loop with a memory limit set.

CChaika Not if you have no zones at all. If you have at least one, even just a throwaway...

Tobias•3/25/25, 10:23 AM

thanks so much! this worked well

lisekilis•3/25/25, 12:04 PM

lil help please?
https://canary.discord.com/channels/595317990191398933/1354022352987619349

Justin Schroeder•3/25/25, 3:53 PM

Cloudflare Team: Does this https://discord.com/channels/595317990191398933/1040420029080018945/1354117859671805964 announcement mean that

ctx.waitUntil()

ctx.waitUntil()

can have a longer execution time too. Its been 30s of wall-clock duration, and I could really use an increase time limit there.

zerozerozeroone•3/25/25, 11:17 PM

Chaps when connecting github, I can only see repositories created by the account that was connected. It doesn't show repos shared with me. Is there anyway repos shared with me can be used?

JJustin Schroeder Cloudflare Team: Does this https://discord.com/channels/595317990191398933/10404...

Walshy•3/25/25, 11:20 PM

no, waitUntil hsa not changed

WWalshy no, waitUntil hsa not changed

Justin Schroeder•3/25/25, 11:21 PM

Cool cool cool. Any chance they might happen in the near future?

matt•3/26/25, 12:31 AM

in this worker code im measuring time to hit origin. it starts off ~350 and then after a few refreshes, becomes a mixture of ~350 and ~100

is this TCP or HTTP keepalive at play? are there any viewable stats, or any ways that I can get the ~100 to occur more frequently?

const start = performance.now()
await fetch('https://unweb.io/healthcheck').then(x => x.text())
return new Response(String(performance.now() - start));

const start = performance.now()
await fetch('https://unweb.io/healthcheck').then(x => x.text())
return new Response(String(performance.now() - start));

divby0•3/26/25, 10:23 AM

I read something somewhere (a while ago) about workers being favored in the future in place of pages. Did I read that wrong? Can't find anything on pages getting deprecated or something.

Ddivby0 I read something somewhere (a while ago) about workers being favored in the futu...

Vero•3/26/25, 12:05 PM

Hey. Pages is still supported but longer term we want to get to a point where every new application can be built on Workers

Vero•3/26/25, 12:06 PM

If there are gaps preventing you from using Workers today (and instead choosing Pages), we’d love to hear about that

Tobias•3/26/25, 2:49 PM

Is it possible to setup a subdomain for cloudflare workers without either

Setup the apex domain within cloudflare
Pay 250 dollar a month to setup a subdomain zone

Currently this is possible for cloudflare pages (i.e. just point the subdomain to cloudflare pages).

If not, is it planned in order to have feature parity between cloudflare workers & pages?

TTobias Is it possible to setup a subdomain for cloudflare workers without either - Setu...

Hello, I’m Allie!•3/26/25, 2:51 PM

Use SSL for SaaS yourself, like Pages does?

HHello, I’m Allie!Use SSL for SaaS yourself, like Pages does?

Tobias•3/26/25, 2:52 PM

But then I would need to create a zone within cloudflare with a domain, or I might have missed something?

TTobias But then I would need to create a zone within cloudflare with a domain, or I mig...

Hello, I’m Allie!•3/26/25, 2:52 PM

Yeah, you would need one zone at minimum on Cloudflare

jsonperl•3/26/25, 2:54 PM

Hi there! I'm trying to build a worker that does realtime audio "splicing" from component mp3s. Essentially based on an audio file layout, grab the files from r2, remove header info and splice the mp3 audio data together and stream.

I've succeeded in building this. But now I'm running into a problem that seems maybe unsolvable: clients expect to be able to issue range requests in a header asking for specific bytes in the audio (I'd like to listen starting at 10:00 in...).

What I'd ideally like is that an initial request will be cached entirely, and then the cdn would take over to respond to the range request with a proper 206 response and the bits. There doesn't seem to be a way to do this.

If I respond with a 206 from the worker, it can't be cached
If I respond with a 200 with the whole file, the client doesn't get what it asked for

Any ideas?

Jjsonperl Hi there! I'm trying to build a worker that does realtime audio "splicing" from ...

Hello, I’m Allie!•3/26/25, 2:56 PM

You would need to implement this cache slicing logic in your Worker. Worker responses can’t be cached, so requests will always be billed. Note however that they can interact with the Cache API as part of their handling of a request

HHello, I’m Allie!You would need to implement this cache slicing logic in your Worker. Worker resp...

jsonperl•3/26/25, 3:00 PM

Is there no way to rely on range request handling from standard cloudflare cdn? Like front a worker with the standard cdn?

HHello, I’m Allie!You would need to implement this cache slicing logic in your Worker. Worker resp...

jsonperl•3/26/25, 3:01 PM

The other huge gotcha here is that anything besides directly streaming from r2 out to the client will quickly surpass the memory limits of a worker. Audio is large, but the streaming solution built works well as it just streams it through without holding much in memory.

Any caching of the whole thing (or writing out to r2 for a "tempfile") is going to need it loaded in memory, which cannot work.

Jjsonperl Is there no way to rely on range request handling from standard cloudflare cdn? ...

Hello, I’m Allie!•3/26/25, 4:43 PM

Workers are a layer of the CDN on top of the cache. They can interact with it, but responses from a Worker will not be cached themselves

Jjsonperl The other huge gotcha here is that anything besides directly streaming from r2 o...

Hello, I’m Allie!•3/26/25, 4:44 PM

You don’t need to buffer the whole thing in memory, you can stream directly from R2 into the Cache

VVero Hey. Pages is still supported but longer term we want to get to a point where ev...

divby0•3/26/25, 8:02 PM

thanks a lot

No shortcomings, just curiosity because this recommendations are not really easily findable

Mia•3/26/25, 10:41 PM

RIP i just wasted an entire day going down the websockets rabbit hole only to realise discord has a cloudflare ban so i can't use workers with DO for their gateway api :(:(

Mia•3/26/25, 10:42 PM

they just 401 when a new connection attempt originates from a worker ip

Mia•3/26/25, 10:42 PM

and from what ive read the only way around this is with Aegis but that's enterprise only

Hello everyone, I recently built a web page generation service using Cloudflare Agents, which suppor

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