Problems with Eleventy server, passthrough copy, and pathPrefix

[azangru]

Operating system

macOS Sonoma Version 14.2.1

Eleventy

2.0.1

Describe the bug

Hi. Sorry for reporting several issues in one — they all are related to my repro case.

• If Eleventy server is started with the --ignore-initial option (e.g. using the eleventy --ignore-initial --incremental --serve command), then the page that lists elements of a collection (e.g. the index page for a blog) will not show the collection items. It seems that the --ignore-initial option prevents the full collection from being read. If this is the expected behavior, I do not think it is reflected in the documentation.
• The passthrough copy emulation (enabled with eleventyConfig.setServerPassthroughCopyBehavior("passthrough");) does not seem to work. The default behavior, which is copy, works correctly
• Eleventy does not detect changes in passthrough files.
• If I add a pathPrefix to eleventyConfig, the dev sever redirects to a page without the prefix if the url does not have a trailing slash. For example:
  • No prefix set in the config; url /blog/2023-article-one/ (with a trailing slash) shows the page correctly
  • No prefix set in the config; url /blog/2023-article-one (without a trailing slash) redirects to /blog/2023-article-one/ and shows the page correctly
  • Prefix set in the config; url /prefix/blog/2023-article-one/ (with a trailing slash) shows the page correctly
  • (BUG) Prefix set in the config; url /prefix/blog/2023-article-one (without a trailing slash) redirects to /blog/2023-article-one/ (prefix lost), and shows a 404 page

Reproduction steps

For the problem with --ignore-initial:

1. Copy the reproduction repo, install node modules, and run npm start (this will run eleventy --ignore-initial --incremental --serve)
2. Update the src/blog.njk file
3. Navigate to /blog
4. You will see the "Blog" heading, without any links to the articles. Expected the blog index page to contain a list of articles.

For the problem with passthrough copy:

1. Make sure the build directory has been deleted
2. In .eleventy.js file, uncomment the line eleventyConfig.setServerPassthroughCopyBehavior("passthrough");
3. Run npm start (this will run eleventy --ignore-initial --incremental --serve)
4. Save src/blog/2023/article-one/index.md file to get it picked up by the dev server
5. Open /blog/2023-article-one/
6. (Problem): You will see that the image does not get served
7. Stop the dev server
8. In .eleventy.js file, comment the line `eleventyConfig.setServerPassthroughCopyBehavior("passthrough");
9. Run npm start
10. Visit /blog/2023-article-one/ again
11. You will see that the image has been copied correctly
12. Update styles in the src/blog/2023/article-one/styles.css file
13. In the terminal, you will see the message "Copied 1 file / Wrote 0 files (skipped 5) in 0.02 seconds (v2.0.1)"
14. (Problem): However, the dev server will continue serving the old file.

For the problem with pathPrefix:

1. In .eleventy.js, uncomment the line pathPrefix: '/prefix/'
2. Run npm start to start the server
3. Visit /prefix/blog/2023-article-one/. You should see the blog article page.
4. Delete the trailing slash from /prefix/blog/2023-article-one/ in the url bar and press enter
5. (Problem): Instead of redirecting back to /prefix/blog/2023-article-one/, dev server will redirect to /blog/2023-article-one/ (without the prefix), and you will see a 404 page.

Reproduction URL

https://github.com/azangru/eleventy-blog-bugs-repro

Screenshots

No response