randy
5caf865fc8
public/sw.js: network-falling-back-to-cache for RainViewer radar tile requests specifically (nothing else — the app itself is served by the same local server that's already the offline resource in the van, so there's no app-shell to precache). Registered from layout.erb, a no-op where it can't register (insecure context) rather than an error. Verified: registers and controls the page, tiles get cached on a normal fetch, cache.match() correctly retrieves them by the same request. CDP's network-blocking simulation doesn't interact cleanly with Service Worker fetch interception (a known tooling quirk, not specific to this), so the actual offline fallback path is the standard try/catch pattern, verified by code review rather than a simulated-offline screenshot.
46 lines
2.0 KiB
ERB
46 lines
2.0 KiB
ERB
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, initial-scale=1">
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<title>MapTool</title>
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<link rel="stylesheet" href="/vendor/maplibre-gl/maplibre-gl.css">
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<link rel="stylesheet" href="/css/style.css?v=<%= ASSET_VERSION %>">
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</head>
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<body>
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<%= yield %>
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<script>
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// Caches radar tile images (see public/sw.js) so the last-seen frames
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// stay visible once the network is actually gone. Silently a no-op
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// where it can't register — insecure-context LAN access without a
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// reverse proxy in front, for instance — same as radar caching simply
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// not working there; nothing else on the page depends on this.
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if ("serviceWorker" in navigator) {
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navigator.serviceWorker.register("/sw.js").catch(() => {});
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}
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</script>
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<script src="/vendor/pmtiles/pmtiles.js"></script>
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<script src="/vendor/protomaps-themes-base/protomaps-themes-base.js"></script>
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<%# Vendored libs above don't change between deploys, so they're left
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unversioned; app.js's own modules do, and map.js statically imports
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them by bare path — an import map remaps those paths to a versioned
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URL so editing e.g. gpx.js also busts its cache, without having to
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touch every file's import statements. Must come before the module
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script below: the importmap has to be parsed first. %>
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<script type="importmap">
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{
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"imports": {
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"/js/gnss.js": "/js/gnss.js?v=<%= ASSET_VERSION %>",
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"/js/gpx.js": "/js/gpx.js?v=<%= ASSET_VERSION %>",
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"/js/icons.js": "/js/icons.js?v=<%= ASSET_VERSION %>",
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"/js/livetrack.js": "/js/livetrack.js?v=<%= ASSET_VERSION %>",
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"/js/panels.js": "/js/panels.js?v=<%= ASSET_VERSION %>",
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"/js/radar.js": "/js/radar.js?v=<%= ASSET_VERSION %>",
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"/js/track_profile.js": "/js/track_profile.js?v=<%= ASSET_VERSION %>"
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}
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}
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</script>
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<script type="module" src="/js/map.js?v=<%= ASSET_VERSION %>"></script>
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</body>
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</html>
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