When browsing a content containing a PDF file, this message is shown in the UI: "Content is too large to be displayed (size is greater than 1.0 MB).", as expected (although the limit seems a bit low).

But the JS code also raises an uncaught error: SWH-WEBAPP-36B

For example: https://archive.softwareheritage.org/browse/origin/content/?origin_url=https%3A%2F%2Fgithub.com%2FOpenPackets%2FWi-Fi_Hacking&path=wifi%20hacking.pdf