error Cross Origin ?

[201603007Akhiles]

why i cannot access file and error cross origin. can you help?

[deepak-ghimire]

Cross Origin issue occurs when the requested PDF file is in different domain from the page that is request the file.

Different domains can also include:

1. https and http protocol difference.
2. www and non-www subdomain difference
3. fully different domains

What can be done?

In the domain/server where the PDF files exists, you have to add proper configuration for CORS so that the request domain gains permission to load the files.

For Apache Server, add following lines in .htaccess file

Header set Access-Control-Allow-Origin "*" 
Header set Access-Control-Allow-Headers "Range" 
Header set Access-Control-Expose-Headers: "Accept-Ranges, Content-Encoding, Content-Length, Content-Range"

More Info:
https://enable-cors.org/server.html
https://js.dearflip.com/cors-issues-with-pdf/