SubPrint CORS Errors from preflights
These instructions help resolve label printing issues coming from browser updates recently. The cause SubPrint to fail to print, print duplicates, or print previous package labels when Receiving on WTS site.
This is a browser change, so any computer using the site to print labels to SubPrint will need to apply the changes for the supported browser of choice.
Instructions for Chrome
Go to chrome://flags/
Search for Respect the result of Private Network Access preflights
Disable that flag and relaunch Chrome; SubPrint should work normally again
Instructions for Chromium Edge
Go to edge://flags/
Search for Respect the result of Private Network Access preflights
Disable that flag and relaunch Edge; SubPrint should work normally again
Instructions for Mozilla Firefox
Go to about:config in a new tab
Click Accept the risk and continue
Search for preflight
Set the network.cors_preflight.allow_client_cert flag to true