Zotero Connector cannot save PDFs from ScienceDirect and IEEE Xplore

Report ID: 106336667

I am unable to save PDFs using Zotero Connector. This happens not only on ScienceDirect/Elsevier pages, but also on IEEE Xplore.

Problem:

When I open a PDF page in the browser and click the Zotero Connector button, Zotero Connector fails to save/extract the PDF. The problem occurs even when I am already on the PDF-only page. It is not limited to saving from the article/abstract page.

Steps to reproduce:

1. Start Zotero Desktop.
2. Open Chrome/Edge.
3. Open a subscribed article on ScienceDirect or IEEE Xplore.
4. Confirm that the PDF can be opened manually in the browser.
5. Go to the PDF page itself.
6. Click the Zotero Connector button.
7. Zotero Connector fails to save the PDF.

Expected result:

The PDF should be saved as an attachment in Zotero.

Actual result:

The PDF is not saved. The Connector reports an error. I submitted an error report and received Report ID 106336667.

Relevant error text from the Connector log includes repeated JavaScript errors such as:

“TypeError: Cannot set properties of null (setting 'getAllResponseHeaders')”

with stack traces involving:

singleFileFetch

single-file.js

getContent

connector.js

background-worker.js

Environment:

- Zotero version: 9.0.4
- Zotero Connector version: 5.0.205
- Browser: Chrome
- Operating system: macOS 26.5
- Access method: University subscription / OpenAthens
- Sites affected: ScienceDirect and IEEE Xplore

Things I have tried:

- Restarted Zotero and the browser.
- Tried saving from the PDF page itself.
- Confirmed that the PDF can be opened manually in the browser.
- Checked that this is not limited to ScienceDirect, since IEEE Xplore is also affected.

Could you please advise whether this is a known Zotero Connector issue, a browser-specific issue, or a problem with authenticated PDF access?
  • adomasven Zotero Team
    edited yesterday at 6:20am
    Can you submit two Debug IDs from the Connector for an attempt to save from each ScienceDirect and IEEE Xplore. Can you confirm that you can save this pdf fine with the connector?
  • @miyaryo Actually, we can reproduce the issue. We'll release a fix soon.
  • Thank you for looking into this and reproducing the issue. I appreciate the quick response and will look forward to the upcoming fix.
  • @adomasven

    I meet the same problem. My Zotero Connector cannot save PDFs from several ACS publications, including OPRD and JACS.

    The Zotero Connector could pick up ALL metadata from the website (including the author, DOI, URL, etc.), then create a local item in my library.

    It could not download the full text PDF. A "×" would present before the "full text PDF", and this row would become red, if I press the extension.

    I have access to these PDFs. It is viable to download all these PDFs manually and attach them to the items manually.

    For Elsevier links, my Zotero connector could download the PDFs itself.

    I hope this comment brings useful information for you. Thank you for the time to read the comment.
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