DocumentCloud embed fails to render PDF pages in Pale Moon

[Gittyperson]

Per your email request, I am filing this as a GitHub ticket.

Reporting a rendering issue with DocumentCloud in the Pale Moon desktop browser.

The issue is easily reproducible for example on this direct embed URL:

https://embed.documentcloud.org/documents/6223343-Gary-Goforth/?mode=document&embed=1

What happens:

• the viewer shell loads
• the page count is detected
• page placeholders appear
• but the actual PDF page content does not render

Browser console reports:
SyntaxError: export declarations may only appear at top level of a module

in:
pdf.worker.ByF8NTMy.mjs

There is also an integrity-related console message, but the PDF worker/module error appears to be the key issue, because the viewer initializes while page rendering fails.

This is reproducible on a direct DocumentCloud embed URL, so it does not appear to depend on a third-party site’s layout wrapper.

Screenshot of the rendered result:

Environment:
Browser: Pale Moon 34.1.0 (64-bit)
OS: Windows 10 22H2 (build 19045.7058)

[duckduckgrayduck]

Thanks! We'll try to triage what might be causing this

[duckduckgrayduck]

We will try updating some of our dependencies in hopes of fixing this, but no promises as this only seems to be happening in this browser

[Gittyperson]

Thank you for the effort, it is appreciated. Please note the Goanna browser engine is probably the only one left that is active, updated and not backed by a large corporation. Pale Moon is the main one but it is also used by other browsers.

https://en.wikipedia.org/wiki/Comparison_of_browser_engines

Sure, the market share is small but we are still talking about hundreds of thousands of users. Since your platform hosts documents that should be accessible to anyone, I would hope for an extra effort to accommodate these users!

Feel free to contact the developers for possible technical questions, troubleshooting etc. I am sure a solution can be found.
https://www.palemoon.org/contact/