Cannot open / view PDF in mobile browsers

[sunidy]

The current stable version 4.3.136 cannot open PDF in mobile brows.

I tested it under iOS and Android with Safari and Chrome.

Is there an issue or some settings need to be changed?

=======================
Feb 13, 2025

Just tested the latest version 4.10.38, the issue still not been fixed.

I tested Chrome and Safari on iOS.

==========
March 19, 2026

Sorry for a late respond. We have found it caused by the browser in my old Android. :(

[sunidy]

[machmalpause]

Yes, tested and confirmed on several devices running iOS 16.7.8

[crli]

Hope to fix versions 4.267 and above

[roldeguz]

Any updates on this?

[sunidy]

[nicolo-ribaudo]

That first link works in Firefox and Chrome (on Android — because Chrome on iOS is actually Safari).

This seems like a Safari bug.

[sunidy]

But the second link works in Chrome and Safari on iOS.

Not sure what changed in PDF.js since version 4.9.379 that caused the problem.

[nicolo-ribaudo]

What version of Safari for iOS are you using? I just tested on my iPad and I can open both. It's possible that you might need to use the legacy build (https://github.com/mozilla/pdf.js/wiki/Frequently-Asked-Questions#legacy-build), which is transpiled to support browsers other than the latest Chrome & Firefox versions.