The visible Issue

In a build, I generate a report that contains Storybook ( https://storybook.js.org/ )

When I access the report, I see the page, but if I copy the URL and send it to a colleague, I get a 404.

Let's say for example the report is at : https://my-jenkins/myjob/master/report/index.html
The first time it's opened, Storybook replaces the URL with https://my-jenkins/myjob/master/report/index.html?path=/link_to_storybook_page/link_to_storybook_item

Now if I were to refresh the page (f5) or open it in a different window. I get a 404. Because I get redirected to https://my-jenkins/link_to_storybook_page/link_to_storybook_item

Why this happens
My first idea is that it was a storybook bug, but after ruling that out, I found that the HTMLPublisher Plugin, to serve the pages ( https://github.com/jenkinsci/htmlpublisher-plugin/blob/master/src/main/java/htmlpublisher/HtmlPublisherTarget.java#L270-L276 ) uses DirectoryBrowserSupport

And in DirectoryBrowserSupport There is a special condition that does a redirect if the path query parameter is present https://github.com/jenkinsci/jenkins/blob/master/core/src/main/java/hudson/model/DirectoryBrowserSupport.java#L190-L195

What can we do about it

Obviously that will be yours to decide, but here are my ideas

• Remove this legacy condition from DirectoryBrowserSupport
• Use something else than DirectoryBrowserSupport, I don't know the Jenkins internals, maybe there is another class that does a similar job without this bug
• Fork the class and maintain a version without this
• Ask Storybook if they can use a different routing mechanism (I create an issue for them as well)

Thanks in advance for your time