Unexpected server response (301) while retrieving PDF from arxiv

[jgong5]

I got the following message when I tried to annotate PDFs from arxiv in obsidian (with the Annotator plugin). I use "..." for brevity.
Unexpected server response (301) while retrieving PDF "https://via.hypothes.is/proxy/static/.../https://arxiv.org/pdf/...pdf".

The related markdown is
annotation-target:: https://arxiv.org/pdf/...pdf

Same syntax works well for other PDF links. Any idea what the problem is and how to fix it? Thanks.

[robertknight]

Can you provide a screenshot of the message, including the full URL. Can you also provide the full URL that you were trying to annotate. This will make it easier to understand and reproduce the issue.

It is unclear from the description whether the error is coming from a Hypothesis service or Obsidian or the Obsidian plugin you are using. If it is coming from Obsidian, you'll need to refer the issue to the maintainers of those tools. A 301 response indicates a redirect, so it sounds like something is not following redirects when handling HTTP responses.