<p></p>
<p>As I thought this is down to how <a href="https://github.com/domoritz/leaflet-locatecontrol">leaflet-locatecontrol</a> works - specifically it is that control, not us, that does the substitution.</p>
<p>That was recently changed by <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="542680068" data-permission-text="Title is private" data-url="https://github.com/domoritz/leaflet-locatecontrol/issues/258" data-hovercard-type="pull_request" data-hovercard-url="/domoritz/leaflet-locatecontrol/pull/258/hovercard" href="https://github.com/domoritz/leaflet-locatecontrol/pull/258">domoritz/leaflet-locatecontrol#258</a> to support a callback function but for some reason the corresponding PR on our end (<a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="541934653" data-permission-text="Title is private" data-url="https://github.com/openstreetmap/openstreetmap-website/issues/2475" data-hovercard-type="pull_request" data-hovercard-url="/openstreetmap/openstreetmap-website/pull/2475/hovercard" href="https://github.com/openstreetmap/openstreetmap-website/pull/2475">#2475</a>) doesn't actually use it despite being referenced.</p>

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