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<h1 id="error-code">Error</h1>
<img src="" id="error-image" style="width: 100%;">
<script>
const params = new URLSearchParams(window.location.search)
const code = params.get("code") || "404"
// yes, i typed these out manually.
const messages = {
400: "Bad request",
401: "Unauthorized",
402: "Payment required",
403: "Forbidden",
404: "Not found",
405: "Method not allowed",
406: "Not acceptable",
407: "Proxy authentication required",
408: "Request timeout",
409: "Conflict",
410: "Gone",
411: "Length required",
412: "Precondition failed",
413: "Payload too large",
414: "Request-URI too long",
415: "Unsupported media type",
416: "Request range not satisfiable",
417: "Expectation failed",
418: "I'm a teapot",
419: "Page expired",
420: "Enhance your calm",
421: "Misdirected request",
422: "Unprocessable entity",
423: "Locked",
424: "Failed dependency",
425: "Too early",
426: "Upgrade required",
428: "Precondition Required",
429: "Too many requests",
431: "Request header fields too large",
444: "No response",
450: "Blocked by windows parental controls",
451: "Unavailable for legal reasons",
495: "SSL certificate error",
496: "SSL certificate required",
497: "HTTP request sent to HTTPS port",
498: "Token expired/invalid",
499: "Client closed request",
500: "Internal server error",
501: "Not implemented",
502: "Bad gateway",
503: "Service unavailable",
504: "Gateway timeout",
506: "Variant also negotiates",
507: "Insufficient storage",
508: "Loop detected",
509: "Bandwidth limit exceeded",
510: "Not extended",
511: "Network authentication required",
521: "Web server is down",
522: "Connection timed out",
523: "Origin is unreachable",
525: "SSL handshake failed",
530: "Site frozen",
599: "Network connect timeout error"
}
document.getElementById("error-code").textContent = "Error " + code + " - " + (messages[code] || "Unexpected error")
const host = Math.random() < 0.5 ? "cat" : "dog";
const url = host === "dog"
? `https://http.dog/${code}.jpg`
: `https://http.cat/${code}`;
document.getElementById("error-image").src = url;
</script>
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