This thread is resolved. Here is a description of the problem and solution.
Problem:
Using CRED form to upload files, get the error message: there was an error occur uploading your file, with some Javascript errors, for example:
OPTIONS https://teach210.wpengine.com/wp-admin/admin-ajax.php?action=cred_frontend_ajax_upload_submit&id=-1&formid=124&nonce=a3a7ee2775 401 () Failed to load https://teach210.wpengine.com/wp-admin/admin-ajax.php?action=cred_frontend_ajax_upload_submit&id=-1&formid=124&nonce=a3a7ee2775: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://teach210.wpengine.com' is therefore not allowed access. The response had HTTP status code 401.
Solution:
You will need to open the URL with SSL protocol, for example, open:
https://site-URL/.../
and test again
Relevant Documentation:
This support ticket is created 6 years, 12 months ago. There's a good chance that you are reading advice that it now obsolete.
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This topic contains 3 replies, has 2 voices.
Last updated by 6 years, 12 months ago.
Assisted by: Luo Yang.
