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        <title>404 - Host Not Found</title>
        <style>
            h1, h2, h3, h4, h5, p, a, span, .ui.list .item{
                font-family: 'Noto Sans TC', sans-serif;
                font-weight: 300;
                color: rgb(88, 88, 88)
            }

            .diagram{
                background-color: #ebebeb;
                padding-bottom: 2em;
            }

            .diagramHeader{
                margin-top: 0.2em;
            }

            @media (max-width:512px) { 
                .widescreenOnly{
                    display: none !important;
                    
                }

                .four.wide.column:not(.widescreenOnly){
                    width: 50% !important;
                }

                .ui.grid{
                    justify-content: center !important;
                }
            }
        </style>
    </head>
    <body>
        <div>
            <br><br>
            <div class="ui container">
                <h1 style="font-size: 4rem;">Error 404</h1>
                <p style="font-size: 2rem; margin-bottom: 0.4em;">Target Host Not Found</p>
                <small id="timestamp"></small>
            </div>
            <br><br>
        </div>
        <div class="diagram">
            <div class="ui text container">
                <div class="ui grid">
                    <div class="four wide column widescreenOnly" align="center">
                        <svg version="1.1" id="client_svg" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
                            width="100%" viewBox="0 0 200 200" enable-background="new 0 0 200 200" xml:space="preserve">
                        <path fill="#C9CACA" d="M184.795,143.037c0,9.941-8.059,18-18,18H33.494c-9.941,0-18-8.059-18-18V44.952c0-9.941,8.059-18,18-18
                            h133.301c9.941,0,18,8.059,18,18V143.037z"/>
                        <circle fill="#FFFFFF" cx="37.39" cy="50.88" r="6.998"/>
                        <circle fill="#FFFFFF" cx="54.115" cy="50.88" r="6.998"/>
                        <path fill="#FFFFFF" d="M167.188,50.88c0,3.865-3.133,6.998-6.998,6.998H72.379c-3.865,0-6.998-3.133-6.998-6.998l0,0
                            c0-3.865,3.133-6.998,6.998-6.998h87.811C164.055,43.882,167.188,47.015,167.188,50.88L167.188,50.88z"/>
                        <rect x="31.296" y="66.907" fill="#FFFFFF" width="132.279" height="77.878"/>
                        <circle fill="#9BCA3E" cx="96.754" cy="144.785" r="37.574"/>
                        <polyline fill="none" stroke="#FFFFFF" stroke-width="8" stroke-miterlimit="10" points="108.497,133.047 93.373,153.814 
                            82.989,143.204 "/>
                        </svg>
                        <small>You</small>
                        <h2 class="diagramHeader">Browser</h2>
                        <p style="font-weight: 500; color: #9bca3e;">Working</p>
                    </div>  
                    <div class="two wide column widescreenOnly" style="margin-top: 8em; text-align: center;">
                        <i class="ui big grey exchange alternate icon" style="color:rgb(167, 167, 167) !important;"></i>
                    </div>
                    <div class="four wide column widescreenOnly" align="center">
                        <svg version="1.1" id="cloud_svg" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
                            width="100%" viewBox="0 0 200 200" enable-background="new 0 0 200 200" xml:space="preserve">
                            <ellipse fill="#9FA0A0" cx="46.979" cy="108.234" rx="25.399" ry="25.139"/>
                            <circle fill="#9FA0A0" cx="109.407" cy="100.066" r="50.314"/>
                            <circle fill="#9FA0A0" cx="22.733" cy="129.949" r="19.798"/>
                            <circle fill="#9FA0A0" cx="172.635" cy="125.337" r="24.785"/>
                            <path fill="#9FA0A0" d="M193.514,133.318c0,9.28-7.522,16.803-16.803,16.803H28.223c-9.281,0-16.803-7.522-16.803-16.803l0,0
                                c0-9.28,7.522-16.804,16.803-16.804h148.488C185.991,116.515,193.514,124.038,193.514,133.318L193.514,133.318z"/>
                            <circle fill="#9BCA3D" cx="100" cy="149.572" r="38.267"/>
                            <polyline fill="none" stroke="#FFFFFF" stroke-width="8" stroke-miterlimit="10" points="113.408,136.402 95.954,160.369 
                                83.971,148.123 "/>
                        </svg>

                        <small>Gateway Node</small>
                        <h2 class="diagramHeader">Reverse Proxy</h2>
                        <p style="font-weight: 500; color: #9bca3e;">Working</p>
                    </div>  
                    <div class="two wide column widescreenOnly" style="margin-top: 8em; text-align: center;">
                        <i class="ui big grey exchange alternate icon" style="color:rgb(167, 167, 167) !important;"></i>
                    </div>
                    <div class="four wide column" align="center">
                        <svg version="1.1" id="host_svg" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
                            width="100%" viewBox="0 0 200 200" enable-background="new 0 0 200 200" xml:space="preserve">
                        <path fill="#999999" d="M168.484,113.413c0,9.941,3.317,46.324-6.624,46.324H35.359c-9.941,0-5.873-39.118-5.715-46.324
                            l17.053-50.909c1.928-9.879,8.059-18,18-18h69.419c9.941,0,15.464,7.746,18,18L168.484,113.413z"/>
                        <rect x="38.068" y="118.152" fill="#FFFFFF" width="122.573" height="34.312"/>
                        <circle fill="#BD2426" cx="141.566" cy="135.873" r="8.014"/>
                        <circle fill="#BD2426" cx="99.354" cy="152.464" r="36.343"/>
                        <line fill="none" stroke="#FFFFFF" stroke-width="6" stroke-miterlimit="10" x1="90.5" y1="144.125" x2="107.594" y2="161.946"/>
                        <line fill="none" stroke="#FFFFFF" stroke-width="6" stroke-miterlimit="10" x1="90.5" y1="161.946" x2="107.594" y2="144.79"/>
                        </svg>
                        <small id="host"></small>
                        <h2 class="diagramHeader">Host</h2>
                        <p style="font-weight: 500; color: #bd2426;">Not Found</p>
                    </div>
                  </div>
            </div>
        </div>
        <div>
            <br>
            <div class="ui container">
                <div class="ui stackable grid">
                    <div class="eight wide column">
                        <h1>What happened?</h1>
                        <p>The reverse proxy target domain is not found.<br>For more information, see the error message on the reverse proxy terminal.</p>
                    </div>
                    <div class="eight wide column">
                        <h1>What can I do?</h1>
                        <h5 style="font-weight: 500;">If you are a visitor of this website: </h5>
                        <p>Please try again in a few minutes</p>
                        <h5 style="font-weight: 500;">If you are the owner of this website:</h5>
                        <div class="ui bulleted list">
                            <div class="item">Check if the proxy rules that match this hostname exists</div>
                            <div class="item">Visit the Reverse Proxy management interface to correct any setting errors</div>
                        </div>
                    </div>
                  </div>
            </div>
            <br>
        </div>
        <div class="ui divider"></div>
        <div class="ui container" style="color: grey; font-size: 90%">
            <p>Powered by Zoraxy</p>
        </div>
        <br><br>

        <script>
            $("#timestamp").text(new Date());
            $("#host").text(location.href);
        </script>
    </body>
</html>
