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45721da | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 | Incorrect rendering of URL logos supplied to _brand.yml when rendering to HTML
### Bug description
When brand logos are supplied via a URL, quarto renders the URL in the HTML using `\` instead of `/`. This will appropriately show the logo when previewing the render locally, but when pushed to a GitHub Pages site the URL gets converted to a relative path based on the current website. For example, if I have a logo hosted at `https://mysite.github.io/branding/logos/example.png`, and I try to link to it in the `_brand.yml` at `https://mysite.github.io/mypage`, the URL embedded in the html will convert the logo URL to `https:\mysite.github.io\branding\logos\example.png`, which will try to redirect to `https://mysite.github.io/mysite.github.io/branding/logos/example.png` (real example shown in the screenshot)
### Steps to reproduce
````qmd
---
title: "Reproducible Quarto Document"
format: html
brand:
logo:
images:
quarto-logo:
path: 
alt: "Quarto icon"
small: quarto-logo
---
This is a reproducible Quarto document using `format: html`. It is written in Markdown and contains embedded Python code. When you run the code, it will produce a message.
{{< lipsum 1 >}}
{{< brand logo small>}}
The end.
````
### Actual behavior
HTML renders the image as follows: `<img src="https:\quarto.org\quarto.png" class="img-fluid">`
When shown in a local preview, this renders the image correctly. When hosted on an external website using GitHub Pages, this appends the image URL to the website URL
### Expected behavior
HTML renders the image with the full URL: ``
When shown on an external website in a browser, this should correctly render the image.
### Your environment
- IDE: Positron 2025.05.0 build 58
- OS: Windows 11
### Quarto check output
```
Quarto 1.7.29
[>] Checking environment information...
Quarto cache location: C:\Users\Jonathan.Peake\AppData\Local\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: 1.7.29
Path: C:\Users\Jonathan.Peake\AppData\Local\Programs\Quarto\bin
CodePage: 1252
[>] Checking tools....................OK
TinyTeX: (external install)
Chromium: (not installed)
[>] Checking LaTeX....................OK
Using: TinyTex
Path: C:\Users\Jonathan.Peake\AppData\Roaming\TinyTeX\bin\windows\
Version: 2025
[>] Checking Chrome Headless....................OK
Using: Chrome found on system
Path: C:\Program Files\Google\Chrome\Application\chrome.exe
Source: Windows Registry
[>] Checking basic markdown render....OK
[>] Checking Python 3 installation....OK
Version: 3.12.9 (Conda)
Path: C:/Users/Jonathan.Peake/AppData/Local/miniforge3/python.EXE
Jupyter: (None)
Jupyter is not available in this Python installation.
Install with conda install jupyter
[>] Checking R installation...........OK
Version: 4.4.2
Path: C:/Users/Jonathan.Peake/AppData/Local/Programs/R/R-4.4.2
LibPaths:
- C:/Users/Jonathan.Peake/AppData/Local/Programs/R/R-4.4.2/library
knitr: 1.50
rmarkdown: 2.29
[>] Checking Knitr engine render......OK
```
## Relevant pre-fix discussion
### Issue #12643
#### Comment at 2025-04-29T18:50:18Z
I also created a live GitHub Pages site from the reprex quarto file: https://jonpeake.github.io/quarto-reprex/reprex.html
When accessed from site url:
When previewing locally:
#### Comment at 2025-04-29T22:43:45Z
I followed the formatting used in this doc, which suggests that a URL is not only allowed but supported:
https://quarto.org/docs/authoring/brand.html
 |