Refused to get unsafe header "Content-Range"

[hammer ren]

When we load pdf document in Chrome and got following error and warning in console:

Refused to get unsafe header "Content-Range"

CoreControls.js:745 Could not use incremental download for url ... Reason: Could not retrieve Content-Range header.

[Justin Jung]

Hello,

Does the document fail to load when you see that error message?

Justin Jung

Software Developer

PDFTron Systems Inc.

[hammer ren]

No, the document is till loaded. But I'm afraid it's not taking benefit of linearised pdf performance wide. Any comment?

[Justin Jung]

It may be related to cross origin issues, and you could try exposing Content-Range header in your server explicitly.

The issue posted here seems similar, and resolved by exposing the header. See here for details: https://github.com/mozilla/pdf.js/issues/3150#issuecomment-17582371