Linebreaks for urls does not work in bibliography

[apfelpfluecker]

I have:

• searched the issue tracker for similar issues
• installed the latest version of Quarto CLI
• formatted my issue following the Bug Reports guide

Bug description

I have problems with linebreaks with long urls when rendering from Quarto to PDF. Also, the url is not formatted as an hyperlink, but this could also be a fail of the citation style (chicago).

Steps to reproduce

Reproducable Example in Quarto:

---
title: "testfile"
bibliography: references.bib
link-bibliography: true

format: pdf
---

# Heading

[see @nationaldemocraticinstitutePublicAttitudesGeorgia2016 and @nationaldemocraticinstitutePublicAttitudesGeorgia2022]

The Bibtex file:

@misc{nationaldemocraticinstitutePublicAttitudesGeorgia2016,
  title = {Public Attitudes in {{Georgia}}, {{November}} 2016},
  author = {{National Democratic Institute}},
  year = {2016},
  month = nov,
  publisher = {Caucasus Barometer},
  address = {https://www.caucasusbarometer.org/en/nn2016ge},
  urldate = {2025-06-10}
}

@misc{nationaldemocraticinstitutePublicAttitudesGeorgia2022,
  title = {Public Attitudes in {{Georgia}}, {{July-August}} 2022},
  author = {{National Democratic Institute}},
  year = {2022},
  month = jul,
  publisher = {Caucasus Barometer},
  address = {https://www.caucasusbarometer.org/en/nj2022ge},
  urldate = {2025-06-10}
}

Actual behavior

Behavior:

Expected behavior

Expected behavior:
The url should break within the margins.

Your environment

• IDE: RStudio 2025.05.0+496 "Mariposa Orchid" Release (f0b76cc00df96fe7f0ee687d4bed0423bc3de1f8, 2025-05-04) for Ubuntu Jammy
  Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) rstudio/2025.05.0+496 Chrome/132.0.6834.210 Electron/34.5.1 Safari/537.36, Quarto 1.7.32 (/opt/quarto/bin/quarto)
• OS: Zorin OS 17.3 Education

Quarto check output

Quarto 1.7.32
[✓] Checking environment information...
      Quarto cache location: /home/zuk/.cache/quarto
[✓] Checking versions of quarto binary dependencies...
      Pandoc version 3.6.3: OK
      Dart Sass version 1.85.1: OK
      Deno version 1.46.3: OK
      Typst version 0.13.0: OK
[✓] Checking versions of quarto dependencies......OK
[✓] Checking Quarto installation......OK
      Version: 1.7.32
      Path: /opt/quarto/bin

[✓] Checking tools....................OK
      TinyTeX: (external install)
      Chromium: 869685

[✓] Checking LaTeX....................OK
      Using: TinyTex
      Path: /home/zuk/.TinyTeX/bin/x86_64-linux
      Version: 2025

[✓] Checking Chrome Headless....................OK
      Chrome:  (not detected)

[✓] Checking basic markdown render....OK

[✓] Checking Python 3 installation....OK
      Version: 3.10.12
      Path: /usr/bin/python3
      Jupyter: (None)

      Jupyter is not available in this Python installation.
      Install with python3 -m pip install jupyter

[✓] Checking R installation...........OK
      Version: 4.5.1
      Path: /usr/lib/R
      LibPaths:
        - /home/zuk/R/x86_64-pc-linux-gnu-library/4.5
        - /usr/local/lib/R/site-library
        - /usr/lib/R/site-library
        - /usr/lib/R/library
      knitr: 1.50
      rmarkdown: 2.29

[✓] Checking Knitr engine render......OK

[cderv]

This is an issue with Pandoc directly as I can reproduce using only Pandoc

$ quarto pandoc -t latex -f markdown --citeproc --output test.pdf index.qmd

So it seems a Pandoc's citeproc problem to not correctly break.

So probably an issue to report in Pandoc directly with a simple example without quarto

[apfelpfluecker]

Thanks! Unfortunately, I’m not really familiar with Pandoc itself, so it’s not possible for me to produce a simple example. I will open an issue in Pandoc and hope that people can help me there.
Thanks for your work on Quarto. I really love it.