How to code URLs for static files in an additional directory

[belfasthenry]

In my system I have an existing directory /d/u/PhotoIndex which contains my archive of photographs, organised into a tree of directories. I have a Mojo application which reads the directories and sub-directories and presents web pages containing thumbnails of the photographs, with links to display them high-res.

My problem is that I'm generating URLs into that file tree which look right but don't display images. That directory is in the static paths:

[
  "/home/henry/gitr/pas/public",
  "/d/u/PhotoIndex"
]

(/home/henry/gitr/pas/public is the public directory in the Mojo application tree).

The parts of the HTML which are supposed to display thumbnails of the images are like this:

<a href="/view/d/u/PhotoIndex/2016/10/2016_10_05%20Northumberland/IMG_0113.JPG" target="_blank">
      <img alt="IMG_0113.JPG" class="dirlist" src="/d/u/PhotoIndex/2016/10/2016_10_05%20Northumberland/IMG_0113.JPG">

.. but the images referenced by the "src" attribute are not being rendered.

(BTW "view" is a route I've defined to display the full-resolution image in a separate window))

My understanding of the process for serving static files is that Mojo searches the paths in order for the URL supplied; but I've done something wrong, because the file referred to above (IMG_0113.JPG) most certainly exists:

ls "/d/u/PhotoIndex/2016/10/2016_10_05 Northumberland/IMG_0113.JPG"
'/d/u/PhotoIndex/2016/10/2016_10_05 Northumberland/IMG_0113.JPG'

I've tried coding a absolute URL but relative to /d/u/PhotoIndex thus src="/2016/10 ...etc but that doesn't do what I want either.

[Grinnz]

If your static path is /d/u/PhotoIndex then the URL to /d/u/PhotoIndex/2016/10/2016_10_05 Northumberland/IMG_0113.JPG would be /2016/10/2016_10_05 Northumberland/IMG_0113.JPG.

[Grinnz]

Beyond that, check the log and the file/directory permissions.

[belfasthenry]

D'you know what ... I thought I'd tried that. But plainly I hadn't, because it works fine. Thank you.