Correctly prettify canonical URLs when prettyurls=true. (#1293)

(cherry picked from commit 048d2fa)

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Documenter.jl changelog
 
+## Version `v0.24.9`
+
+* ![Bugfix][badge-bugfix] Canonical URLs are now properly prettified (e.g. `/path/` instead of `/path/index.html`) when using `prettyurls=true`. ([#1293][github-1293])
+
 ## Version `v0.24.8`
 
 * ![Enhancement][badge-enhancement] Non-standard admonition categories are (again) applied to the admonition `<div>` elements in HTML output (as `is-category-$category`). ([#1279][github-1279], [#1280][github-1280])
@@ -535,6 +539,7 @@
 [github-1269]: https://github.com/JuliaDocs/Documenter.jl/pull/1269
 [github-1279]: https://github.com/JuliaDocs/Documenter.jl/issues/1279
 [github-1280]: https://github.com/JuliaDocs/Documenter.jl/pull/1280
+[github-1293]: https://github.com/JuliaDocs/Documenter.jl/pull/1293
 
 [documenterlatex]: https://github.com/JuliaDocs/DocumenterLaTeX.jl
 [documentermarkdown]: https://github.com/JuliaDocs/DocumenterMarkdown.jl

src/Writers/HTMLWriter.jl

@@ -752,7 +752,7 @@ function render_head(ctx, navnode)
 
         analytics_script(ctx.settings.analytics),
 
-        canonical_link_element(ctx.settings.canonical, src),
+        canonical_link_element(ctx.settings.canonical, pretty_url(ctx, src)),
 
         # Stylesheets.
         map(css_links) do each