My customer can't upload file on wix form file submission. He using safari browser. The error message is "couldn't upload your file due to a technical issue. try again"

I’m having trouble with

My customer cannot upload a PDF file through a Wix Form. When selecting a file, the upload fails and shows the error message:

“Couldn’t upload your file due to a technical issue. Try again.”

Working in

Wix Studio Editor (Wix Forms)

What I’m trying to do

Allow visitors to upload a PDF file through a Wix Form submission.

What I’ve tried so far

  • Asked the customer to try again.

  • Confirmed the issue occurs in Safari browser.

  • Verified that the file upload field is enabled in the form.

  • Checked that the form is published and working otherwise.

Extra context

  • Browser: Safari

  • File type: PDF

  • The error appears before the form is submitted.

  • I am not sure whether this is a Safari-specific issue, a Wix Forms issue, or a file upload configuration issue.

Have they tried using another browser like Chrome? that worked for me.