snapshot of https://github.com/ory/kratos.git (master, 2026-09-15; blobs > 131072B omitted)

oryx/serverx/404.go

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+// Copyright © 2023 Ory Corp
+// SPDX-License-Identifier: Apache-2.0
+
+package serverx
+
+import (
+	_ "embed"
+	"net/http"
+
+	"github.com/ory/herodot/httputil"
+)
+
+//go:embed 404.html
+var page404HTML string
+
+//go:embed 404.json
+var page404JSON string
+
+// DefaultNotFoundHandler is a default handler for handling 404 errors.
+var DefaultNotFoundHandler = http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+	var contentType, body string
+	switch httputil.NegotiateContentType(r, []string{
+		"text/html",
+		"text/plain",
+		"application/json",
+	}, "text/html") {
+	case "text/plain":
+		contentType = "text/plain"
+		body = "Error 404 - The requested route does not exist. Make sure you are using the right path, domain, and port."
+	case "application/json":
+		contentType = "application/json"
+		body = page404JSON
+	default:
+		fallthrough
+	case "text/html":
+		contentType = "text/html"
+		body = page404HTML
+	}
+
+	w.Header().Set("Content-Type", contentType+"; charset=utf-8")
+	w.WriteHeader(http.StatusNotFound)
+	_, _ = w.Write([]byte(body))
+})

oryx/serverx/404.html

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+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <title>404 - Route not found</title>
+    <style>
+      * {
+        transition: all 0.6s;
+      }
+      html {
+        height: 100%;
+      }
+      body {
+        font-family: sans-serif;
+        color: #888;
+        margin: 0;
+      }
+      #main {
+        display: table;
+        width: 100%;
+        height: 100vh;
+        text-align: center;
+      }
+      .fof {
+        display: table-cell;
+        vertical-align: middle;
+      }
+      .fof h1 {
+        font-size: 50px;
+        display: inline-block;
+        padding-right: 12px;
+        margin-bottom: 12px;
+        animation: type 0.5s alternate infinite;
+      }
+      @keyframes type {
+        from {
+          box-shadow: inset -3px 0 0 #888;
+        }
+        to {
+          box-shadow: inset -3px 0 0 transparent;
+        }
+      }
+    </style>
+  </head>
+  <body translate="no">
+    <div id="main">
+      <div class="fof">
+        <h1>Error 404</h1>
+        <p>
+          The requested route does not exist. Make sure you are using the right
+          path, domain, and port.
+        </p>
+      </div>
+    </div>
+  </body>
+</html>

oryx/serverx/404.json

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+{
+  "error": {
+    "code": 404,
+    "message": "Not Found",
+    "reason": "The requested route does not exist. Make sure you are using the right path, domain, and port."
+  }
+}