Duplicate Sales on POS Checkout When Using Pale Moon

[Cloudtradesystems]

Hello Pale Moon team and community,

I’m currently running a Point of Sale (POS) system through the Pale Moon browser, and I’ve encountered a recurring issue: sales are being duplicated at checkout.

What I’ve observed:
When completing a transaction, the system sometimes records the sale twice.

This happens intermittently, not on every checkout.

I’ve tried basic troubleshooting (clearing cache, disabling add-ons, testing on a fresh profile), but the duplication still occurs.

Environment details:

Operating system: Windows 11
Browser version: 33.9.1
32-bit or 64-bit browser?: 64bit
Problem URL:tedmartpos.r-prime.co.ke
Browser theme (if not default): Default
Installed add-ons:none
Installed plugins: (about:plugins):none

If possible, please include the output of help->troubleshooting information (as text):

**PASTE troubleshooting information here**

, Cleared Cookies, tested an older version

[Moonchild]

It'll be difficult to troubleshoot something like this unless you have a test setup that can be used to see what's happening.
The built-in developer tools (F12) can be your friend, though. I suggest you check first off what happens in the "Network" tab of devtools when there is a duplicate, see if there are duplicate requests or something fails or there is a timeout and retry or something.

[Cloudtradesystems]

Pale Moon, tends to fire the same POST request two times(as seen in the attached image), w

[Moonchild]

Since they are fired in parallel and it's an xhr, this means you'll have to investigate your site scripting to see where this POST gets sent and why it could potentially happen twice.
Since there are no networking issues by the looks of it, we can rule out a potential issue with site security and similar. It simply looks like a double trigger of the POST by the site's scripting.