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c85417e | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 | <!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Titanic Explainer Waking Up</title>
<style>
:root {
color-scheme: light;
--bg: #f5f7fb;
--card: #ffffff;
--text: #12243a;
--muted: #546b84;
--accent: #0b5fff;
}
body {
margin: 0;
min-height: 100vh;
display: grid;
place-items: center;
background: radial-gradient(circle at top right, #deebff, var(--bg) 45%);
font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
color: var(--text);
}
.card {
width: min(680px, 92vw);
background: var(--card);
border-radius: 16px;
padding: 28px;
box-shadow: 0 10px 30px rgba(15, 35, 95, 0.12);
}
h1 {
margin: 0 0 10px;
font-size: 1.7rem;
}
p {
margin: 0 0 10px;
color: var(--muted);
line-height: 1.4;
}
.status {
margin-top: 16px;
font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
.dot {
display: inline-block;
width: 10px;
height: 10px;
border-radius: 999px;
background: var(--accent);
margin-right: 8px;
animation: pulse 1.2s infinite;
}
@keyframes pulse {
0% { opacity: 0.2; transform: scale(0.9); }
50% { opacity: 1; transform: scale(1.05); }
100% { opacity: 0.2; transform: scale(0.9); }
}
</style>
</head>
<body>
<main class="card">
<h1>Titanic Explainer is waking up</h1>
<p>The demo sleeps when idle to save cost. This page will refresh automatically as soon as the app is ready.</p>
<p>If it takes longer than a minute, keep this tab open and wait for the next check.</p>
<div class="status"><span class="dot"></span><span id="message">Checking backend...</span></div>
</main>
<script>
const messageEl = document.getElementById("message");
async function checkBackend() {
try {
const res = await fetch("/__backend_health", { cache: "no-store" });
if (res.ok) {
messageEl.textContent = "Backend is ready, redirecting...";
window.location.reload();
return;
}
messageEl.textContent = `Still waking up (status ${res.status})...`;
} catch (err) {
messageEl.textContent = "Still waking up (network retry)...";
}
}
checkBackend();
setInterval(checkBackend, 2500);
</script>
</body>
</html>
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