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<!DOCTYPE html>
<html><script type="text/javascript">try {
(function injectPageScriptAPI(scriptName, shouldOverrideWebSocket, shouldOverrideWebRTC, isInjected) { 

    'use strict';

    /**
     * If script have been injected into a frame via contentWindow then we can simply take the copy of messageChannel left for us by parent document
     * Otherwise creates new message channel that sends a message to the content-script to check if request should be allowed or not.
     */
    var messageChannel = isInjected ? window[scriptName] : (function () {

        // Save original postMessage and addEventListener functions to prevent webpage from tampering both.
        var postMessage = window.postMessage;
        var addEventListener = window.addEventListener;

        // Current request ID (incremented every time we send a new message)
        var currentRequestId = 0;
        var requestsMap = {};

        /**
         * Handles messages sent from the content script back to the page script.
         *
         * @param event Event with necessary data
         */
        var onMessageReceived = function (event) {

            if (!event.data || !event.data.direction || event.data.direction !== "to-page-script@abu") {
                return;
            }

            var requestData = requestsMap[event.data.requestId];
            if (requestData) {
                var wrapper = requestData.wrapper;
                requestData.onResponseReceived(wrapper, event.data.block);
                delete requestsMap[event.data.requestId];
            }
        };

        /**
         * @param url                The URL to which wrapped object is willing to connect
         * @param requestType        Request type ( WEBSOCKET or WEBRTC)
         * @param wrapper            WebSocket wrapper instance
         * @param onResponseReceived Called when response is received
         */
        var sendMessage = function (url, requestType, wrapper, onResponseReceived) {

            if (currentRequestId === 0) {
                // Subscribe to response when this method is called for the first time
                addEventListener.call(window, "message", onMessageReceived, false);
            }

            var requestId = ++currentRequestId;
            requestsMap[requestId] = {
                wrapper: wrapper,
                onResponseReceived: onResponseReceived
            };

            var message = {
                requestId: requestId,
                direction: 'from-page-script@abu',
                elementUrl: url,
                documentUrl: document.URL,
                requestType: requestType
            };

            // Send a message to the background page to check if the request should be blocked
            postMessage.call(window, message, "*");
        };

        return {
            sendMessage: sendMessage
        };

    })();

    /*
     * In some case Chrome won't run content scripts inside frames.
     * So we have to intercept access to contentWindow/contentDocument and manually inject wrapper script into this context
     *
     * Based on: https://github.com/adblockplus/adblockpluschrome/commit/1aabfb3346dc0821c52dd9e97f7d61b8c99cd707
     */
    var injectedToString = Function.prototype.toString.bind(injectPageScriptAPI);

    var injectedFramesAdd;
    var injectedFramesHas;
    if (window.WeakSet instanceof Function) {
        var injectedFrames = new WeakSet();
        injectedFramesAdd = WeakSet.prototype.add.bind(injectedFrames);
        injectedFramesHas = WeakSet.prototype.has.bind(injectedFrames);
    } else {
        var frames = [];
        injectedFramesAdd = function (el) {
            if (frames.indexOf(el) < 0) {
                frames.push(el);
            }
        };
        injectedFramesHas = function (el) {
            return frames.indexOf(el) >= 0;
        };
    }

    /**
     * Injects wrapper's script into passed window
     * @param contentWindow Frame's content window
     */
    function injectPageScriptAPIInWindow(contentWindow) {
        try {
            if (contentWindow && !injectedFramesHas(contentWindow)) {
                injectedFramesAdd(contentWindow);
                contentWindow[scriptName] = messageChannel; // Left message channel for the injected script
                var args = "'" + scriptName + "', " + shouldOverrideWebSocket + ", " + shouldOverrideWebRTC + ", true";
                contentWindow.eval("(" + injectedToString() + ")(" + args + ");");
                delete contentWindow[scriptName];
            }
        } catch (e) {
        }
    }

    /**
     * Overrides access to contentWindow/contentDocument for the passed HTML element's interface (iframe, frame, object)
     * If the content of one of these objects is requested we will inject our wrapper script.
     * @param iface HTML element's interface
     */
    function overrideContentAccess(iface) {

        var contentWindowDescriptor = Object.getOwnPropertyDescriptor(iface.prototype, "contentWindow");
        var contentDocumentDescriptor = Object.getOwnPropertyDescriptor(iface.prototype, "contentDocument");

        // Apparently in HTMLObjectElement.prototype.contentWindow does not exist
        // in older versions of Chrome such as 42.
        if (!contentWindowDescriptor) {
            return;
        }

        var getContentWindow = Function.prototype.call.bind(contentWindowDescriptor.get);
        var getContentDocument = Function.prototype.call.bind(contentDocumentDescriptor.get);

        contentWindowDescriptor.get = function () {
            var contentWindow = getContentWindow(this);
            injectPageScriptAPIInWindow(contentWindow);
            return contentWindow;
        };
        contentDocumentDescriptor.get = function () {
            injectPageScriptAPIInWindow(getContentWindow(this));
            return getContentDocument(this);
        };

        Object.defineProperty(iface.prototype, "contentWindow", contentWindowDescriptor);
        Object.defineProperty(iface.prototype, "contentDocument", contentDocumentDescriptor);
    }

    var interfaces = [HTMLFrameElement, HTMLIFrameElement, HTMLObjectElement];
    for (var i = 0; i < interfaces.length; i++) {
        overrideContentAccess(interfaces[i]);
    }

    /**
     * Defines properties in destination object
     * @param src Source object
     * @param dest Destination object
     * @param properties Properties to copy
     */
    var copyProperties = function (src, dest, properties) {
        for (var i = 0; i < properties.length; i++) {
            var prop = properties[i];
            var descriptor = Object.getOwnPropertyDescriptor(src, prop);
            // Passed property may be undefined
            if (descriptor) {
                Object.defineProperty(dest, prop, descriptor);
            }
        }
    };

    /**
     * Check request by sending message to content script
     * @param url URL to block
     * @param type Request type
     * @param callback Result callback
     */
    var checkRequest = function (url, type, callback) {
        messageChannel.sendMessage(url, type, this, function (wrapper, blockConnection) {
            callback(blockConnection);
        });
    };

    /**
     * The function overrides window.WebSocket with our wrapper, that will check url with filters through messaging with content-script.
     *
     * IMPORTANT NOTE:
     * This function is first loaded as a content script. The only purpose of it is to call
     * the "toString" method and use resulting string as a text content for injected script.
     */
    var overrideWebSocket = function () { 

        if (!(window.WebSocket instanceof Function)) {
            return;
        }

        /**
         * WebSocket wrapper implementation.
         * https://github.com/AdguardTeam/AdguardBrowserExtension/issues/349
         *
         * Based on:
         * https://github.com/adblockplus/adblockpluschrome/commit/457a336ee55a433217c3ffe5d363e5c6980f26f4
         */

        /**
         * As far as possible we must track everything we use that could be sabotaged by the website later in order to circumvent us.
         */
        var RealWebSocket = WebSocket;
        var closeWebSocket = Function.prototype.call.bind(RealWebSocket.prototype.close);

        function WrappedWebSocket(url, protocols) {
            // Throw correct exceptions if the constructor is used improperly.
            if (!(this instanceof WrappedWebSocket)) {
                return RealWebSocket();
            }
            if (arguments.length < 1) {
                return new RealWebSocket();
            }

            var websocket = new RealWebSocket(url, protocols);

            // This is the key point: checking if this WS should be blocked or not
            // Don't forget that the type of 'websocket.url' is String, but 'url 'parameter might have another type.
            checkRequest(websocket.url, 'WEBSOCKET', function (blocked) {
                if (blocked) {
                    closeWebSocket(websocket);
                }
            });

            return websocket;
        }

        // https://github.com/AdguardTeam/AdguardBrowserExtension/issues/488
        WrappedWebSocket.prototype = RealWebSocket.prototype;
        window.WebSocket = WrappedWebSocket.bind();

        copyProperties(RealWebSocket, WebSocket, ["CONNECTING", "OPEN", "CLOSING", "CLOSED", "name", "prototype"]);

        RealWebSocket.prototype.constructor = WebSocket;

    };

    /**
     * The function overrides window.RTCPeerConnection with our wrapper, that will check ice servers URLs with filters through messaging with content-script.
     *
     * IMPORTANT NOTE:
     * This function is first loaded as a content script. The only purpose of it is to call
     * the "toString" method and use resulting string as a text content for injected script.
     */
    var overrideWebRTC = function () { 


        if (!(window.RTCPeerConnection instanceof Function) &&
            !(window.webkitRTCPeerConnection instanceof Function)) {
            return;
        }

        /**
         * RTCPeerConnection wrapper implementation.
         * https://github.com/AdguardTeam/AdguardBrowserExtension/issues/588
         *
         * Based on:
         * https://github.com/adblockplus/adblockpluschrome/commit/af0585137be19011eace1cf68bf61eed2e6db974
         *
         * Chromium webRequest API doesn't allow the blocking of WebRTC connections
         * https://bugs.chromium.org/p/chromium/issues/detail?id=707683
         */

        var RealRTCPeerConnection = window.RTCPeerConnection || window.webkitRTCPeerConnection;
        var closeRTCPeerConnection = Function.prototype.call.bind(RealRTCPeerConnection.prototype.close);

        var RealArray = Array;
        var RealString = String;
        var createObject = Object.create;
        var defineProperty = Object.defineProperty;

        /**
         * Convert passed url to string
         * @param url URL
         * @returns {string}
         */
        function urlToString(url) {
            if (typeof url !== "undefined") {
                return RealString(url);
            }
        }

        /**
         * Creates new immutable array from original with some transform function
         * @param original
         * @param transform
         * @returns {*}
         */
        function safeCopyArray(original, transform) {

            if (original === null || typeof original !== "object") {
                return original;
            }

            var immutable = RealArray(original.length);
            for (var i = 0; i < immutable.length; i++) {
                defineProperty(immutable, i, {
                    configurable: false, enumerable: false, writable: false,
                    value: transform(original[i])
                });
            }
            defineProperty(immutable, "length", {
                configurable: false, enumerable: false, writable: false,
                value: immutable.length
            });
            return immutable;
        }

        /**
         * Protect configuration from mutations
         * @param configuration RTCPeerConnection configuration object
         * @returns {*}
         */
        function protectConfiguration(configuration) {

            if (configuration === null || typeof configuration !== "object") {
                return configuration;
            }

            var iceServers = safeCopyArray(
                configuration.iceServers,
                function (iceServer) {

                    var url = iceServer.url;
                    var urls = iceServer.urls;

                    // RTCPeerConnection doesn't iterate through pseudo Arrays of urls.
                    if (typeof urls !== "undefined" && !(urls instanceof RealArray)) {
                        urls = [urls];
                    }

                    return createObject(iceServer, {
                        url: {
                            configurable: false, enumerable: false, writable: false,
                            value: urlToString(url)
                        },
                        urls: {
                            configurable: false, enumerable: false, writable: false,
                            value: safeCopyArray(urls, urlToString)
                        }
                    });
                }
            );

            return createObject(configuration, {
                iceServers: {
                    configurable: false, enumerable: false, writable: false,
                    value: iceServers
                }
            });
        }

        /**
         * Check WebRTC connection's URL and close if it's blocked by rule
         * @param connection Connection
         * @param url URL to check
         */
        function checkWebRTCRequest(connection, url) {
            checkRequest(url, 'WEBRTC', function (blocked) {
                if (blocked) {
                    try {
                        closeRTCPeerConnection(connection);
                    } catch (e) {
                        // Ignore exceptions
                    }
                }
            });
        }

        /**
         * Check each URL of ice server in configuration for blocking.
         *
         * @param connection RTCPeerConnection
         * @param configuration Configuration for RTCPeerConnection
         * https://developer.mozilla.org/en-US/docs/Web/API/RTCConfiguration
         */
        function checkConfiguration(connection, configuration) {

            if (!configuration || !configuration.iceServers) {
                return;
            }

            var iceServers = configuration.iceServers;
            for (var i = 0; i < iceServers.length; i++) {

                var iceServer = iceServers[i];
                if (!iceServer) {
                    continue;
                }

                if (iceServer.url) {
                    checkWebRTCRequest(connection, iceServer.url);
                }

                if (iceServer.urls) {
                    for (var j = 0; j < iceServer.urls.length; j++) {
                        checkWebRTCRequest(connection, iceServer.urls[j]);
                    }
                }
            }
        }

        /**
         * Overrides setConfiguration method
         * https://developer.mozilla.org/en-US/docs/Web/API/RTCPeerConnection/setConfiguration
         */
        if (RealRTCPeerConnection.prototype.setConfiguration) {

            var realSetConfiguration = Function.prototype.call.bind(RealRTCPeerConnection.prototype.setConfiguration);

            RealRTCPeerConnection.prototype.setConfiguration = function (configuration) {
                configuration = protectConfiguration(configuration);
                // Call the real method first, so that validates the configuration
                realSetConfiguration(this, configuration);
                checkConfiguration(this, configuration);
            };
        }

        function WrappedRTCPeerConnection(configuration, arg) {

            if (!(this instanceof WrappedRTCPeerConnection)) {
                return RealRTCPeerConnection();
            }

            configuration = protectConfiguration(configuration);

            /**
             * The old webkitRTCPeerConnection constructor takes an optional second argument and we must pass it.
             */
            var connection = new RealRTCPeerConnection(configuration, arg);
            checkConfiguration(connection, configuration);
            return connection;
        }

        WrappedRTCPeerConnection.prototype = RealRTCPeerConnection.prototype;

        var boundWrappedRTCPeerConnection = WrappedRTCPeerConnection.bind();
        copyProperties(RealRTCPeerConnection, boundWrappedRTCPeerConnection, ["caller", "generateCertificate", "name", "prototype"]);
        RealRTCPeerConnection.prototype.constructor = boundWrappedRTCPeerConnection;

        if ("RTCPeerConnection" in window) {
            window.RTCPeerConnection = boundWrappedRTCPeerConnection;
        }
        if ("webkitRTCPeerConnection" in window) {
            window.webkitRTCPeerConnection = boundWrappedRTCPeerConnection;
        }
    };

    if (shouldOverrideWebSocket) {
        overrideWebSocket();
    }

    if (shouldOverrideWebRTC) {
        overrideWebRTC();
    }
})('wrapper-script-3215676477346979', false, true);
} catch (ex) { console.error('Error executing AG js: ' + ex); }
(function () {
            var current = document.currentScript;
            var parent = current && current.parentNode;
            if (parent) {
                parent.removeChild(current);
            }
        })();</script><head>
    <meta http-equiv="Content-type" content="text/html; charset=UTF-8">
    <meta http-equiv="Content-Security-Policy" content="default-src 'none'; style-src 'unsafe-inline'; img-src data:; connect-src 'self'">
    <title>Page not found · GitHub Pages</title>
    <style type="text/css" media="screen">
      body {
        background-color: #f1f1f1;
        margin: 0;
        font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
      }

      .container { margin: 50px auto 40px auto; width: 600px; text-align: center; }

      a { color: #4183c4; text-decoration: none; }
      a:hover { text-decoration: underline; }

      h1 { width: 800px; position:relative; left: -100px; letter-spacing: -1px; line-height: 60px; font-size: 60px; font-weight: 100; margin: 0px 0 50px 0; text-shadow: 0 1px 0 #fff; }
      p { color: rgba(0, 0, 0, 0.5); margin: 20px 0; line-height: 1.6; }

      ul { list-style: none; margin: 25px 0; padding: 0; }
      li { display: table-cell; font-weight: bold; width: 1%; }

      .logo { display: inline-block; margin-top: 35px; }
      .logo-img-2x { display: none; }
      @media
      only screen and (-webkit-min-device-pixel-ratio: 2),
      only screen and (   min--moz-device-pixel-ratio: 2),
      only screen and (     -o-min-device-pixel-ratio: 2/1),
      only screen and (        min-device-pixel-ratio: 2),
      only screen and (                min-resolution: 192dpi),
      only screen and (                min-resolution: 2dppx) {
        .logo-img-1x { display: none; }
        .logo-img-2x { display: inline-block; }
      }

      #suggestions {
        margin-top: 35px;
        color: #ccc;
      }
      #suggestions a {
        color: #666666;
        font-weight: 200;
        font-size: 14px;
        margin: 0 10px;
      }

    </style>
  </head>
  <body>

    <div class="container">

      <h1>404</h1>
      <p><strong>File not found</strong></p>

      <p>
        The site configured at this address does not
        contain the requested file.
      </p>

      <p>
        If this is your site, make sure that the filename case matches the URL
        as well as any file permissions.<br>
        For root URLs (like <code>http://example.com/</code>) you must provide an
        <code>index.html</code> file.
      </p>

      <p>
        <a href="https://help.github.com/pages/">Read the full documentation</a>
        for more information about using <strong>GitHub Pages</strong>.
      </p>

      <div id="suggestions">
        <a href="https://githubstatus.com/">GitHub Status</a><a href="https://twitter.com/githubstatus">@githubstatus</a>
      </div>

      <a href="https://llava-vl.github.io/" class="logo logo-img-1x">
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      <a href="https://llava-vl.github.io/" class="logo logo-img-2x">
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