<p></p>
<p><b>@hlfan</b> commented on this pull request.</p>

<hr>

<p>In <a href="https://github.com/openstreetmap/openstreetmap-website/pull/6192#discussion_r2222433411">config/layers.yml</a>:</p>
<pre style='color:#555'>> @@ -4,6 +4,7 @@
   nameId: "standard"
   canEmbed: true
   canDownloadImage: true
+  formats: [png, jpeg, webp, svg, pdf]
</pre>
<p dir="auto">You add this for JS, but the select options are still hard-coded:</p>
<div class="highlight highlight-text-html-erb" dir="auto"><pre class="notranslate">        <span class="pl-k"><%=</span> all_formats = @downloadable_layers.flat_map { |layer| layer["formats"] }.uniq
            select_tag("mapnik_format",
                       options_for_select(all_formats.map { |f| [f.upcase, f] }),
                       { :class => "form-select w-auto", :required => true }) <span class="pl-k">%></span><span class="pl-s1"></span><span class="pl-c1"></span><span class="pl-c1"></span><span class="pl-kos"></span><span class="pl-en"></span><span class="pl-kos"></span><span class="pl-s1"></span><span class="pl-s1"></span><span class="pl-kos"></span><span class="pl-s"></span><span class="pl-kos"></span><span class="pl-kos"></span><span class="pl-kos"></span><span class="pl-en"></span><span class="pl-en"></span><span class="pl-kos"></span><span class="pl-s"></span><span class="pl-kos"></span><span class="pl-en"></span><span class="pl-kos"></span><span class="pl-s1"></span><span class="pl-kos"></span><span class="pl-en"></span><span class="pl-kos"></span><span class="pl-s1"></span><span class="pl-kos"></span><span class="pl-s1"></span><span class="pl-kos"></span><span class="pl-en"></span><span class="pl-kos"></span><span class="pl-s1"></span><span class="pl-kos"></span><span class="pl-kos"></span><span class="pl-kos"></span><span class="pl-kos"></span><span class="pl-kos"></span><span class="pl-pds"></span><span class="pl-c1"></span><span class="pl-s"></span><span class="pl-kos"></span><span class="pl-pds"></span><span class="pl-c1"></span><span class="pl-c1"></span><span class="pl-kos"></span><span class="pl-kos"></span></pre></div>

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