404
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8"> <title>Error</title> </head> <body> <pre>Cannot GET /item/A%20vulnerability%20that%20can%20be%20exploited%20to%20tamper%20with%20a%20train%E2%80%99s%20brakes</pre> </body> </html> .