[Bug]: Range Request is not working

[hamzasdsol]

Attach (recommended) or Link to PDF file

https://link.testfile.org/PDF10MB

Web browser and its version

Chrome Version 133.0.6943.54 (Official Build) (x86_64)

Operating system and its version

mac version 15.3

PDF.js version

4.10.38

Is the bug present in the latest PDF.js version?

Yes

Is a browser extension

No

Steps to reproduce the problem

1. open network panel
2. then open any pdf file
3. you will see in the network panel it does not send the range request header
4. it downloads the whole document

What is the expected behavior?

api is supporting range request, and pdfjs should do the range request automatically

What went wrong?

any file i open it downloads the whole file and not doing the range request, if force the range request like range-0- it does the range requests but without that it just downloads the whole file. i have file bigger than 200mb it takes some time to download it. thats why my api is now supports range requests but pdfjs is not attaching the range header

Link to a viewer

No response

Additional context

No response

[Snuffleupagus]

pdf.js/src/display/api.js

Lines 197 to 206 in 72339dc

	* @property {boolean} [disableStream] - Disable streaming of PDF file data.
	* By default PDF.js attempts to load PDF files in chunks. The default value
	* is `false`.
	* @property {boolean} [disableAutoFetch] - Disable pre-fetching of PDF file
	* data. When range requests are enabled PDF.js will automatically keep
	* fetching more data even if it isn't needed to display the current page.
	* The default value is `false`.
	*
	* NOTE: It is also necessary to disable streaming, see above, in order for
	* disabling of pre-fetching to work correctly.

[hamzasdsol]

i already disabled disableStream & disableAutoFetch but it didnt work