502 Bad Gateway ERROR from my CloudFront #5074

jkoop · 2025-02-13T17:23:09Z

jkoop
Feb 13, 2025

My problem

I followed the guide, and GETting /js/script.js works great, but POSTing to /api/event doesn't:

HTTP/2 502 
content-length: 937
date: Thu, 13 Feb 2025 17:07:29 GMT
x-cache: Error from cloudfront
via: 1.1 c2c1df216e9702c1d5234020d9cfcd42.cloudfront.net (CloudFront)
x-amz-cf-pop: YYC51-P2
x-amz-cf-id: UYRrjVRXR6r0bsNNU4_rVm0KCelr3TWDrmdmJGPXw_iqO-z3lk04TA==

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<HTML><HEAD><META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1">
<TITLE>ERROR: The request could not be satisfied</TITLE>
</HEAD><BODY>
<H1>502 Bad Gateway ERROR</H1>
<H2>The request could not be satisfied.</H2>
<HR noshade size="1px">
We can't connect to the server for this app or website at this time. There might be too much traffic or a configuration error. Try again later, or contact the app or website owner.
<BR clear="all">
If you provide content to customers through CloudFront, you can find steps to troubleshoot and help prevent this error by reviewing the CloudFront documentation.
<BR clear="all">
<HR noshade size="1px">
<PRE>
Generated by cloudfront (CloudFront) HTTP3 Server
Request ID: 0dGWNgAtbkPDV-JKXj2ZbrejGXlenyXutU8-wKaazAY4Pr81HoZPbA&#x3D;&#x3D;
</PRE>
<ADDRESS>
</ADDRESS>
</BODY></HTML>

My setup

My CloudFront Behaviour for /api/event:

My attempted solution

I found the documentation, but it suggests an HTTPS error, which I can't fix.

Any help is appreciated. Thanks.

joaoaxerb · 2025-06-13T15:38:46Z

joaoaxerb
Jun 13, 2025

Hello @jkoop

If you haven't already solved this issue, I dealt with something similiar hosting my app on AWS.

In my case, I realized that following the official documentation, I was configuring tha app to listen locally:

services: plausible: ports: - 127.0.0.1:8000:${HTTP_PORT}

In this case, the app is not bound to the network interface. I needed to change it to 0.0.0.0:8000.

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502 Bad Gateway ERROR from my CloudFront #5074

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jkoop Feb 13, 2025

My problem

My setup

My attempted solution

Replies: 1 comment

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joaoaxerb Jun 13, 2025

jkoop
Feb 13, 2025

joaoaxerb
Jun 13, 2025