Reason: CORS request did not succeed

[mywebforall]

Hi Alex,
My WEB App is working fine on Chrome and Edge ,Windows 11 running here, but on Firefox i get this error. I've set security.tls.version.min = 1 on about:config in Firefox, as specified in your documentation but i still get the error,
Any suggestions?

Thank you and best regards,
Luigi

[Alex]

Hi Luigi,

All modern web browsers allow CORS requests for secured connections only. Do you use secure connection (https://localhost:25329/api/VintasoftTwainApi) to access VintaSoft Web TWAIN service?

If you use secure connection, please let me know version of Windows and Firefox.

VintaSoft Web TWAIN service is not working in Windows 7 and Firefox 74+. More info please read in the "VintaSoft Web TWAIN service is not working in Windows 7 and Firefox 74+" section here: https://www.vintasoft.com/docs/vstwain- ... rvice.html

Best regards, Alexander

[mywebforall]

Hi Alex,

I've already wrote before that i'm running Windows 11 Pro 22H2 and already red and followed the https://www.vintasoft.com/docs/vstwain- ... rvice.html. I'm using a secure connection, my Web App is running on HTTPS and, as speciefied before, i get the error only on the latest stable version of Mozilla Firefox browser.

Best regards,
Luigi

[Alex]

Hi Luigi,

We tested VintaSoft JavaScript TWAIN Scanning Demo in Windows 11 and the latest version (110.0.1 (64-bit)) of Mozilla Firefox and have not found any problem. Please open VintaSoft JavaScript TWAIN Scanning Demo in your Windows desktop and let me know result.

Best regards, Alexander