remove tabs in javascript files

1 files changed, 451 insertions, 451 deletions

diff --git a/js/contentscript.js b/js/contentscript.js
index a4595cb..650d1be 100644
--- a/js/contentscript.js
+++ b/js/contentscript.js
@@ -32,511 +32,511 @@
 
 (function() {
 
-/******************************************************************************/
+    /******************************************************************************/
 
-// https://github.com/chrisaljoudi/uBlock/issues/464
-// https://github.com/gorhill/uMatrix/issues/621
-if (
-    document instanceof HTMLDocument === false &&
-    document instanceof XMLDocument === false
-) {
-    return;
-}
-
-// This can also happen (for example if script injected into a `data:` URI doc)
-if ( !window.location ) {
-    return;
-}
-
-// This can happen
-if ( typeof vAPI !== 'object' ) {
-    //console.debug('contentscript.js > vAPI not found');
-    return;
-}
-
-// https://github.com/chrisaljoudi/uBlock/issues/456
-// Already injected?
-if ( vAPI.contentscriptEndInjected ) {
-    //console.debug('contentscript.js > content script already injected');
-    return;
-}
-vAPI.contentscriptEndInjected = true;
+    // https://github.com/chrisaljoudi/uBlock/issues/464
+    // https://github.com/gorhill/uMatrix/issues/621
+    if (
+        document instanceof HTMLDocument === false &&
+            document instanceof XMLDocument === false
+    ) {
+        return;
+    }
 
-/******************************************************************************/
-/******************************************************************************/
+    // This can also happen (for example if script injected into a `data:` URI doc)
+    if ( !window.location ) {
+        return;
+    }
 
-// Executed only once.
+    // This can happen
+    if ( typeof vAPI !== 'object' ) {
+        //console.debug('contentscript.js > vAPI not found');
+        return;
+    }
 
-(function() {
-    var localStorageHandler = function(mustRemove) {
-        if ( mustRemove ) {
-            window.localStorage.clear();
-            window.sessionStorage.clear();
-        }
-    };
-
-    // Check with extension whether local storage must be emptied
-    // rhill 2014-03-28: we need an exception handler in case 3rd-party access
-    // to site data is disabled.
-    // https://github.com/gorhill/httpswitchboard/issues/215
-    try {
-        var hasLocalStorage =
-            window.localStorage && window.localStorage.length !== 0;
-        var hasSessionStorage =
-            window.sessionStorage && window.sessionStorage.length !== 0;
-        if ( hasLocalStorage || hasSessionStorage ) {
-            vAPI.messaging.send('contentscript.js', {
-                what: 'contentScriptHasLocalStorage',
-                originURL: window.location.origin
-            }, localStorageHandler);
-        }
+    // https://github.com/chrisaljoudi/uBlock/issues/456
+    // Already injected?
+    if ( vAPI.contentscriptEndInjected ) {
+        //console.debug('contentscript.js > content script already injected');
+        return;
+    }
+    vAPI.contentscriptEndInjected = true;
+
+    /******************************************************************************/
+    /******************************************************************************/
+
+    // Executed only once.
+
+    (function() {
+        var localStorageHandler = function(mustRemove) {
+            if ( mustRemove ) {
+                window.localStorage.clear();
+                window.sessionStorage.clear();
+            }
+        };
+
+        // Check with extension whether local storage must be emptied
+        // rhill 2014-03-28: we need an exception handler in case 3rd-party access
+        // to site data is disabled.
+        // https://github.com/gorhill/httpswitchboard/issues/215
+        try {
+            var hasLocalStorage =
+                window.localStorage && window.localStorage.length !== 0;
+            var hasSessionStorage =
+                window.sessionStorage && window.sessionStorage.length !== 0;
+            if ( hasLocalStorage || hasSessionStorage ) {
+                vAPI.messaging.send('contentscript.js', {
+                    what: 'contentScriptHasLocalStorage',
+                    originURL: window.location.origin
+                }, localStorageHandler);
+            }
 
-        // TODO: indexedDB
-        //if ( window.indexedDB && !!window.indexedDB.webkitGetDatabaseNames ) {
+            // TODO: indexedDB
+            //if ( window.indexedDB && !!window.indexedDB.webkitGetDatabaseNames ) {
             // var db = window.indexedDB.webkitGetDatabaseNames().onsuccess = function(sender) {
             //    console.debug('webkitGetDatabaseNames(): result=%o', sender.target.result);
             // };
-        //}
+            //}
 
-        // TODO: Web SQL
-        // if ( window.openDatabase ) {
+            // TODO: Web SQL
+            // if ( window.openDatabase ) {
             // Sad:
             // "There is no way to enumerate or delete the databases available for an origin from this API."
             // Ref.: http://www.w3.org/TR/webdatabase/#databases
-        // }
-    }
-    catch (e) {
-    }
-})();
-
-/******************************************************************************/
-/******************************************************************************/
-
-// https://github.com/gorhill/uMatrix/issues/45
-
-var collapser = (function() {
-    var resquestIdGenerator = 1,
-        processTimer,
-        toProcess = [],
-        toFilter = [],
-        toCollapse = new Map(),
-        cachedBlockedMap,
-        cachedBlockedMapHash,
-        cachedBlockedMapTimer,
-        reURLPlaceholder = /\{\{url\}\}/g;
-    var src1stProps = {
-        'embed': 'src',
-        'iframe': 'src',
-        'img': 'src',
-        'object': 'data'
-    };
-    var src2ndProps = {
-        'img': 'srcset'
-    };
-    var tagToTypeMap = {
-        embed: 'media',
-        iframe: 'frame',
-        img: 'image',
-        object: 'media'
-    };
-    var cachedBlockedSetClear = function() {
-        cachedBlockedMap =
-        cachedBlockedMapHash =
-        cachedBlockedMapTimer = undefined;
-    };
-
-    // https://github.com/chrisaljoudi/uBlock/issues/174
-    //   Do not remove fragment from src URL
-    var onProcessed = function(response) {
-        if ( !response ) { // This happens if uBO is disabled or restarted.
-            toCollapse.clear();
-            return;
+            // }
         }
+        catch (e) {
+        }
+    })();
+
+    /******************************************************************************/
+    /******************************************************************************/
+
+    // https://github.com/gorhill/uMatrix/issues/45
+
+    var collapser = (function() {
+        var resquestIdGenerator = 1,
+            processTimer,
+            toProcess = [],
+            toFilter = [],
+            toCollapse = new Map(),
+            cachedBlockedMap,
+            cachedBlockedMapHash,
+            cachedBlockedMapTimer,
+            reURLPlaceholder = /\{\{url\}\}/g;
+        var src1stProps = {
+            'embed': 'src',
+            'iframe': 'src',
+            'img': 'src',
+            'object': 'data'
+        };
+        var src2ndProps = {
+            'img': 'srcset'
+        };
+        var tagToTypeMap = {
+            embed: 'media',
+            iframe: 'frame',
+            img: 'image',
+            object: 'media'
+        };
+        var cachedBlockedSetClear = function() {
+            cachedBlockedMap =
+                cachedBlockedMapHash =
+                cachedBlockedMapTimer = undefined;
+        };
 
-        var targets = toCollapse.get(response.id);
-        if ( targets === undefined ) { return; }
-        toCollapse.delete(response.id);
-        if ( cachedBlockedMapHash !== response.hash ) {
-            cachedBlockedMap = new Map(response.blockedResources);
-            cachedBlockedMapHash = response.hash;
-            if ( cachedBlockedMapTimer !== undefined ) {
-                clearTimeout(cachedBlockedMapTimer);
+        // https://github.com/chrisaljoudi/uBlock/issues/174
+        //   Do not remove fragment from src URL
+        var onProcessed = function(response) {
+            if ( !response ) { // This happens if uBO is disabled or restarted.
+                toCollapse.clear();
+                return;
+            }
+
+            var targets = toCollapse.get(response.id);
+            if ( targets === undefined ) { return; }
+            toCollapse.delete(response.id);
+            if ( cachedBlockedMapHash !== response.hash ) {
+                cachedBlockedMap = new Map(response.blockedResources);
+                cachedBlockedMapHash = response.hash;
+                if ( cachedBlockedMapTimer !== undefined ) {
+                    clearTimeout(cachedBlockedMapTimer);
+                }
+                cachedBlockedMapTimer = vAPI.setTimeout(cachedBlockedSetClear, 30000);
+            }
+            if ( cachedBlockedMap === undefined || cachedBlockedMap.size === 0 ) {
+                return;
             }
-            cachedBlockedMapTimer = vAPI.setTimeout(cachedBlockedSetClear, 30000);
-        }
-        if ( cachedBlockedMap === undefined || cachedBlockedMap.size === 0 ) {
-            return;
-        }
 
-        var placeholders = response.placeholders,
-            tag, prop, src, collapsed, docurl, replaced;
+            var placeholders = response.placeholders,
+                tag, prop, src, collapsed, docurl, replaced;
 
-        for ( var target of targets ) {
-            tag = target.localName;
-            prop = src1stProps[tag];
-            if ( prop === undefined ) { continue; }
-            src = target[prop];
-            if ( typeof src !== 'string' || src.length === 0 ) {
-                prop = src2ndProps[tag];
+            for ( var target of targets ) {
+                tag = target.localName;
+                prop = src1stProps[tag];
                 if ( prop === undefined ) { continue; }
                 src = target[prop];
-                if ( typeof src !== 'string' || src.length === 0 ) { continue; }
-            }
-            collapsed = cachedBlockedMap.get(tagToTypeMap[tag] + ' ' + src);
-            if ( collapsed === undefined ) { continue; }
-            if ( collapsed ) {
-                target.style.setProperty('display', 'none', 'important');
-                target.hidden = true;
-                continue;
-            }
-            switch ( tag ) {
-            case 'iframe':
-                if ( placeholders.frame !== true ) { break; }
-                docurl =
-                    'data:text/html,' +
-                    encodeURIComponent(
-                        placeholders.frameDocument.replace(
-                            reURLPlaceholder,
-                            src
-                        )
-                    );
-                replaced = false;
-                // Using contentWindow.location prevent tainting browser
-                // history -- i.e. breaking back button (seen on Chromium).
-                if ( target.contentWindow ) {
-                    try {
-                        target.contentWindow.location.replace(docurl);
-                        replaced = true;
-                    } catch(ex) {
+                if ( typeof src !== 'string' || src.length === 0 ) {
+                    prop = src2ndProps[tag];
+                    if ( prop === undefined ) { continue; }
+                    src = target[prop];
+                    if ( typeof src !== 'string' || src.length === 0 ) { continue; }
+                }
+                collapsed = cachedBlockedMap.get(tagToTypeMap[tag] + ' ' + src);
+                if ( collapsed === undefined ) { continue; }
+                if ( collapsed ) {
+                    target.style.setProperty('display', 'none', 'important');
+                    target.hidden = true;
+                    continue;
+                }
+                switch ( tag ) {
+                case 'iframe':
+                    if ( placeholders.frame !== true ) { break; }
+                    docurl =
+                        'data:text/html,' +
+                        encodeURIComponent(
+                            placeholders.frameDocument.replace(
+                                reURLPlaceholder,
+                                src
+                            )
+                        );
+                    replaced = false;
+                    // Using contentWindow.location prevent tainting browser
+                    // history -- i.e. breaking back button (seen on Chromium).
+                    if ( target.contentWindow ) {
+                        try {
+                            target.contentWindow.location.replace(docurl);
+                            replaced = true;
+                        } catch(ex) {
+                        }
                     }
+                    if ( !replaced ) {
+                        target.setAttribute('src', docurl);
+                    }
+                    break;
+                case 'img':
+                    if ( placeholders.image !== true ) { break; }
+                    target.style.setProperty('display', 'inline-block');
+                    target.style.setProperty('min-width', '20px', 'important');
+                    target.style.setProperty('min-height', '20px', 'important');
+                    target.style.setProperty(
+                        'border',
+                        placeholders.imageBorder,
+                        'important'
+                    );
+                    target.style.setProperty(
+                        'background',
+                        placeholders.imageBackground,
+                        'important'
+                    );
+                    break;
                 }
-                if ( !replaced ) {
-                    target.setAttribute('src', docurl);
+            }
+        };
+
+        var send = function() {
+            processTimer = undefined;
+            toCollapse.set(resquestIdGenerator, toProcess);
+            var msg = {
+                what: 'lookupBlockedCollapsibles',
+                id: resquestIdGenerator,
+                toFilter: toFilter,
+                hash: cachedBlockedMapHash
+            };
+            vAPI.messaging.send('contentscript.js', msg, onProcessed);
+            toProcess = [];
+            toFilter = [];
+            resquestIdGenerator += 1;
+        };
+
+        var process = function(delay) {
+            if ( toProcess.length === 0 ) { return; }
+            if ( delay === 0 ) {
+                if ( processTimer !== undefined ) {
+                    clearTimeout(processTimer);
                 }
-                break;
-            case 'img':
-                if ( placeholders.image !== true ) { break; }
-                target.style.setProperty('display', 'inline-block');
-                target.style.setProperty('min-width', '20px', 'important');
-                target.style.setProperty('min-height', '20px', 'important');
-                target.style.setProperty(
-                    'border',
-                    placeholders.imageBorder,
-                    'important'
-                );
-                target.style.setProperty(
-                    'background',
-                    placeholders.imageBackground,
-                    'important'
-                );
-                break;
+                send();
+            } else if ( processTimer === undefined ) {
+                processTimer = vAPI.setTimeout(send, delay || 47);
             }
-        }
-    };
-
-    var send = function() {
-        processTimer = undefined;
-        toCollapse.set(resquestIdGenerator, toProcess);
-        var msg = {
-            what: 'lookupBlockedCollapsibles',
-            id: resquestIdGenerator,
-            toFilter: toFilter,
-            hash: cachedBlockedMapHash
         };
-        vAPI.messaging.send('contentscript.js', msg, onProcessed);
-        toProcess = [];
-        toFilter = [];
-        resquestIdGenerator += 1;
-    };
-
-    var process = function(delay) {
-        if ( toProcess.length === 0 ) { return; }
-        if ( delay === 0 ) {
-            if ( processTimer !== undefined ) {
-                clearTimeout(processTimer);
+
+        var add = function(target) {
+            toProcess.push(target);
+        };
+
+        var addMany = function(targets) {
+            var i = targets.length;
+            while ( i-- ) {
+                toProcess.push(targets[i]);
             }
-            send();
-        } else if ( processTimer === undefined ) {
-            processTimer = vAPI.setTimeout(send, delay || 47);
-        }
-    };
+        };
 
-    var add = function(target) {
-        toProcess.push(target);
-    };
+        var iframeSourceModified = function(mutations) {
+            var i = mutations.length;
+            while ( i-- ) {
+                addIFrame(mutations[i].target, true);
+            }
+            process();
+        };
+        var iframeSourceObserver;
+        var iframeSourceObserverOptions = {
+            attributes: true,
+            attributeFilter: [ 'src' ]
+        };
 
-    var addMany = function(targets) {
-        var i = targets.length;
-        while ( i-- ) {
-            toProcess.push(targets[i]);
-        }
-    };
+        var addIFrame = function(iframe, dontObserve) {
+            // https://github.com/gorhill/uBlock/issues/162
+            // Be prepared to deal with possible change of src attribute.
+            if ( dontObserve !== true ) {
+                if ( iframeSourceObserver === undefined ) {
+                    iframeSourceObserver = new MutationObserver(iframeSourceModified);
+                }
+                iframeSourceObserver.observe(iframe, iframeSourceObserverOptions);
+            }
+            var src = iframe.src;
+            if ( src === '' || typeof src !== 'string' ) { return; }
+            if ( src.startsWith('http') === false ) { return; }
+            toFilter.push({ type: 'frame', url: iframe.src });
+            add(iframe);
+        };
 
-    var iframeSourceModified = function(mutations) {
-        var i = mutations.length;
-        while ( i-- ) {
-            addIFrame(mutations[i].target, true);
-        }
-        process();
-    };
-    var iframeSourceObserver;
-    var iframeSourceObserverOptions = {
-        attributes: true,
-        attributeFilter: [ 'src' ]
-    };
-
-    var addIFrame = function(iframe, dontObserve) {
-        // https://github.com/gorhill/uBlock/issues/162
-        // Be prepared to deal with possible change of src attribute.
-        if ( dontObserve !== true ) {
-            if ( iframeSourceObserver === undefined ) {
-                iframeSourceObserver = new MutationObserver(iframeSourceModified);
+        var addIFrames = function(iframes) {
+            var i = iframes.length;
+            while ( i-- ) {
+                addIFrame(iframes[i]);
             }
-            iframeSourceObserver.observe(iframe, iframeSourceObserverOptions);
-        }
-        var src = iframe.src;
-        if ( src === '' || typeof src !== 'string' ) { return; }
-        if ( src.startsWith('http') === false ) { return; }
-        toFilter.push({ type: 'frame', url: iframe.src });
-        add(iframe);
-    };
-
-    var addIFrames = function(iframes) {
-        var i = iframes.length;
-        while ( i-- ) {
-            addIFrame(iframes[i]);
-        }
-    };
-
-    var addNodeList = function(nodeList) {
-        var node,
-            i = nodeList.length;
-        while ( i-- ) {
-            node = nodeList[i];
-            if ( node.nodeType !== 1 ) { continue; }
-            if ( node.localName === 'iframe' ) {
-                addIFrame(node);
+        };
+
+        var addNodeList = function(nodeList) {
+            var node,
+                i = nodeList.length;
+            while ( i-- ) {
+                node = nodeList[i];
+                if ( node.nodeType !== 1 ) { continue; }
+                if ( node.localName === 'iframe' ) {
+                    addIFrame(node);
+                }
+                if ( node.childElementCount !== 0 ) {
+                    addIFrames(node.querySelectorAll('iframe'));
+                }
+            }
+        };
+
+        var onResourceFailed = function(ev) {
+            if ( tagToTypeMap[ev.target.localName] !== undefined ) {
+                add(ev.target);
+                process();
             }
-            if ( node.childElementCount !== 0 ) {
-                addIFrames(node.querySelectorAll('iframe'));
+        };
+        document.addEventListener('error', onResourceFailed, true);
+
+        vAPI.shutdown.add(function() {
+            document.removeEventListener('error', onResourceFailed, true);
+            if ( iframeSourceObserver !== undefined ) {
+                iframeSourceObserver.disconnect();
+                iframeSourceObserver = undefined;
             }
-        }
-    };
+            if ( processTimer !== undefined ) {
+                clearTimeout(processTimer);
+                processTimer = undefined;
+            }
+        });
 
-    var onResourceFailed = function(ev) {
-        if ( tagToTypeMap[ev.target.localName] !== undefined ) {
-            add(ev.target);
-            process();
-        }
-    };
-    document.addEventListener('error', onResourceFailed, true);
-
-    vAPI.shutdown.add(function() {
-        document.removeEventListener('error', onResourceFailed, true);
-        if ( iframeSourceObserver !== undefined ) {
-            iframeSourceObserver.disconnect();
-            iframeSourceObserver = undefined;
-        }
-        if ( processTimer !== undefined ) {
-            clearTimeout(processTimer);
-            processTimer = undefined;
-        }
-    });
-
-    return {
-        addMany: addMany,
-        addIFrames: addIFrames,
-        addNodeList: addNodeList,
-        process: process
-    };
-})();
+        return {
+            addMany: addMany,
+            addIFrames: addIFrames,
+            addNodeList: addNodeList,
+            process: process
+        };
+    })();
 
-/******************************************************************************/
-/******************************************************************************/
+    /******************************************************************************/
+    /******************************************************************************/
 
-// Observe changes in the DOM
+    // Observe changes in the DOM
 
-// Added node lists will be cumulated here before being processed
+    // Added node lists will be cumulated here before being processed
 
-(function() {
-    // This fixes http://acid3.acidtests.org/
-    if ( !document.body ) { return; }
+    (function() {
+        // This fixes http://acid3.acidtests.org/
+        if ( !document.body ) { return; }
 
-    var addedNodeLists = [];
-    var addedNodeListsTimer;
+        var addedNodeLists = [];
+        var addedNodeListsTimer;
 
-    var treeMutationObservedHandler = function() {
-        addedNodeListsTimer = undefined;
-        var i = addedNodeLists.length;
-        while ( i-- ) {
-            collapser.addNodeList(addedNodeLists[i]);
-        }
-        collapser.process();
-        addedNodeLists = [];
-    };
-
-    // https://github.com/gorhill/uBlock/issues/205
-    // Do not handle added node directly from within mutation observer.
-    var treeMutationObservedHandlerAsync = function(mutations) {
-        var iMutation = mutations.length,
-            nodeList;
-        while ( iMutation-- ) {
-            nodeList = mutations[iMutation].addedNodes;
-            if ( nodeList.length !== 0 ) {
-                addedNodeLists.push(nodeList);
-            }
-        }
-        if ( addedNodeListsTimer === undefined ) {
-            addedNodeListsTimer = vAPI.setTimeout(treeMutationObservedHandler, 47);
-        }
-    };
-
-    // https://github.com/gorhill/httpswitchboard/issues/176
-    var treeObserver = new MutationObserver(treeMutationObservedHandlerAsync);
-    treeObserver.observe(document.body, {
-        childList: true,
-        subtree: true
-    });
-
-    vAPI.shutdown.add(function() {
-        if ( addedNodeListsTimer !== undefined ) {
-            clearTimeout(addedNodeListsTimer);
+        var treeMutationObservedHandler = function() {
             addedNodeListsTimer = undefined;
-        }
-        if ( treeObserver !== null ) {
-            treeObserver.disconnect();
-            treeObserver = undefined;
-        }
-        addedNodeLists = [];
-    });
-})();
-
-/******************************************************************************/
-/******************************************************************************/
+            var i = addedNodeLists.length;
+            while ( i-- ) {
+                collapser.addNodeList(addedNodeLists[i]);
+            }
+            collapser.process();
+            addedNodeLists = [];
+        };
 
-// Executed only once.
-//
-// https://github.com/gorhill/httpswitchboard/issues/25
-//
-// https://github.com/gorhill/httpswitchboard/issues/131
-//   Looks for inline javascript also in at least one a[href] element.
-//
-// https://github.com/gorhill/uMatrix/issues/485
-//   Mind "on..." attributes.
-//
-// https://github.com/gorhill/uMatrix/issues/924
-//   Report inline styles.
+        // https://github.com/gorhill/uBlock/issues/205
+        // Do not handle added node directly from within mutation observer.
+        var treeMutationObservedHandlerAsync = function(mutations) {
+            var iMutation = mutations.length,
+                nodeList;
+            while ( iMutation-- ) {
+                nodeList = mutations[iMutation].addedNodes;
+                if ( nodeList.length !== 0 ) {
+                    addedNodeLists.push(nodeList);
+                }
+            }
+            if ( addedNodeListsTimer === undefined ) {
+                addedNodeListsTimer = vAPI.setTimeout(treeMutationObservedHandler, 47);
+            }
+        };
 
-(function() {
-    if (
-        document.querySelector('script:not([src])') !== null ||
-        document.querySelector('a[href^="javascript:"]') !== null ||
-        document.querySelector('[onabort],[onblur],[oncancel],[oncanplay],[oncanplaythrough],[onchange],[onclick],[onclose],[oncontextmenu],[oncuechange],[ondblclick],[ondrag],[ondragend],[ondragenter],[ondragexit],[ondragleave],[ondragover],[ondragstart],[ondrop],[ondurationchange],[onemptied],[onended],[onerror],[onfocus],[oninput],[oninvalid],[onkeydown],[onkeypress],[onkeyup],[onload],[onloadeddata],[onloadedmetadata],[onloadstart],[onmousedown],[onmouseenter],[onmouseleave],[onmousemove],[onmouseout],[onmouseover],[onmouseup],[onwheel],[onpause],[onplay],[onplaying],[onprogress],[onratechange],[onreset],[onresize],[onscroll],[onseeked],[onseeking],[onselect],[onshow],[onstalled],[onsubmit],[onsuspend],[ontimeupdate],[ontoggle],[onvolumechange],[onwaiting],[onafterprint],[onbeforeprint],[onbeforeunload],[onhashchange],[onlanguagechange],[onmessage],[onoffline],[ononline],[onpagehide],[onpageshow],[onrejectionhandled],[onpopstate],[onstorage],[onunhandledrejection],[onunload],[oncopy],[oncut],[onpaste]') !== null
-    ) {
-        vAPI.messaging.send('contentscript.js', {
-            what: 'securityPolicyViolation',
-            directive: 'script-src',
-            documentURI: window.location.href
+        // https://github.com/gorhill/httpswitchboard/issues/176
+        var treeObserver = new MutationObserver(treeMutationObservedHandlerAsync);
+        treeObserver.observe(document.body, {
+            childList: true,
+            subtree: true
         });
-    }
 
-    if ( document.querySelector('style,[style]') !== null ) {
-        vAPI.messaging.send('contentscript.js', {
-            what: 'securityPolicyViolation',
-            directive: 'style-src',
-            documentURI: window.location.href
+        vAPI.shutdown.add(function() {
+            if ( addedNodeListsTimer !== undefined ) {
+                clearTimeout(addedNodeListsTimer);
+                addedNodeListsTimer = undefined;
+            }
+            if ( treeObserver !== null ) {
+                treeObserver.disconnect();
+                treeObserver = undefined;
+            }
+            addedNodeLists = [];
         });
-    }
-
-    collapser.addMany(document.querySelectorAll('img'));
-    collapser.addIFrames(document.querySelectorAll('iframe'));
-    collapser.process();
-})();
+    })();
+
+    /******************************************************************************/
+    /******************************************************************************/
+
+    // Executed only once.
+    //
+    // https://github.com/gorhill/httpswitchboard/issues/25
+    //
+    // https://github.com/gorhill/httpswitchboard/issues/131
+    //   Looks for inline javascript also in at least one a[href] element.
+    //
+    // https://github.com/gorhill/uMatrix/issues/485
+    //   Mind "on..." attributes.
+    //
+    // https://github.com/gorhill/uMatrix/issues/924
+    //   Report inline styles.
+
+    (function() {
+        if (
+            document.querySelector('script:not([src])') !== null ||
+                document.querySelector('a[href^="javascript:"]') !== null ||
+                document.querySelector('[onabort],[onblur],[oncancel],[oncanplay],[oncanplaythrough],[onchange],[onclick],[onclose],[oncontextmenu],[oncuechange],[ondblclick],[ondrag],[ondragend],[ondragenter],[ondragexit],[ondragleave],[ondragover],[ondragstart],[ondrop],[ondurationchange],[onemptied],[onended],[onerror],[onfocus],[oninput],[oninvalid],[onkeydown],[onkeypress],[onkeyup],[onload],[onloadeddata],[onloadedmetadata],[onloadstart],[onmousedown],[onmouseenter],[onmouseleave],[onmousemove],[onmouseout],[onmouseover],[onmouseup],[onwheel],[onpause],[onplay],[onplaying],[onprogress],[onratechange],[onreset],[onresize],[onscroll],[onseeked],[onseeking],[onselect],[onshow],[onstalled],[onsubmit],[onsuspend],[ontimeupdate],[ontoggle],[onvolumechange],[onwaiting],[onafterprint],[onbeforeprint],[onbeforeunload],[onhashchange],[onlanguagechange],[onmessage],[onoffline],[ononline],[onpagehide],[onpageshow],[onrejectionhandled],[onpopstate],[onstorage],[onunhandledrejection],[onunload],[oncopy],[oncut],[onpaste]') !== null
+        ) {
+            vAPI.messaging.send('contentscript.js', {
+                what: 'securityPolicyViolation',
+                directive: 'script-src',
+                documentURI: window.location.href
+            });
+        }
 
-/******************************************************************************/
-/******************************************************************************/
+        if ( document.querySelector('style,[style]') !== null ) {
+            vAPI.messaging.send('contentscript.js', {
+                what: 'securityPolicyViolation',
+                directive: 'style-src',
+                documentURI: window.location.href
+            });
+        }
 
-// Executed only once.
+        collapser.addMany(document.querySelectorAll('img'));
+        collapser.addIFrames(document.querySelectorAll('iframe'));
+        collapser.process();
+    })();
+
+    /******************************************************************************/
+    /******************************************************************************/
+
+    // Executed only once.
+
+    // https://github.com/gorhill/uMatrix/issues/232
+    //   Force `display` property, Firefox is still affected by the issue.
+
+    (function() {
+        var noscripts = document.querySelectorAll('noscript');
+        if ( noscripts.length === 0 ) { return; }
+
+        var redirectTimer,
+            reMetaContent = /^\s*(\d+)\s*;\s*url=(['"]?)([^'"]+)\2/i,
+            reSafeURL = /^https?:\/\//;
+
+        var autoRefresh = function(root) {
+            var meta = root.querySelector('meta[http-equiv="refresh"][content]');
+            if ( meta === null ) { return; }
+            var match = reMetaContent.exec(meta.getAttribute('content'));
+            if ( match === null || match[3].trim() === '' ) { return; }
+            var url = new URL(match[3], document.baseURI);
+            if ( reSafeURL.test(url.href) === false ) { return; }
+            redirectTimer = setTimeout(
+                function() {
+                    location.assign(url.href);
+                },
+                parseInt(match[1], 10) * 1000 + 1
+            );
+            meta.parentNode.removeChild(meta);
+        };
 
-// https://github.com/gorhill/uMatrix/issues/232
-//   Force `display` property, Firefox is still affected by the issue.
+        var morphNoscript = function(from) {
+            if ( /^application\/(?:xhtml\+)?xml/.test(document.contentType) ) {
+                var to = document.createElement('span');
+                while ( from.firstChild !== null ) {
+                    to.appendChild(from.firstChild);
+                }
+                return to;
+            }
+            var parser = new DOMParser();
+            var doc = parser.parseFromString(
+                '<span>' + from.textContent + '</span>',
+                'text/html'
+            );
+            return document.adoptNode(doc.querySelector('span'));
+        };
 
-(function() {
-    var noscripts = document.querySelectorAll('noscript');
-    if ( noscripts.length === 0 ) { return; }
-
-    var redirectTimer,
-        reMetaContent = /^\s*(\d+)\s*;\s*url=(['"]?)([^'"]+)\2/i,
-        reSafeURL = /^https?:\/\//;
-
-    var autoRefresh = function(root) {
-        var meta = root.querySelector('meta[http-equiv="refresh"][content]');
-        if ( meta === null ) { return; }
-        var match = reMetaContent.exec(meta.getAttribute('content'));
-        if ( match === null || match[3].trim() === '' ) { return; }
-        var url = new URL(match[3], document.baseURI);
-        if ( reSafeURL.test(url.href) === false ) { return; }
-        redirectTimer = setTimeout(
-            function() {
-                location.assign(url.href);
-            },
-            parseInt(match[1], 10) * 1000 + 1
-        );
-        meta.parentNode.removeChild(meta);
-    };
-
-    var morphNoscript = function(from) {
-        if ( /^application\/(?:xhtml\+)?xml/.test(document.contentType) ) {
-            var to = document.createElement('span');
-            while ( from.firstChild !== null ) {
-                to.appendChild(from.firstChild);
+        var renderNoscriptTags = function(response) {
+            if ( response !== true ) { return; }
+            var parent, span;
+            for ( var noscript of noscripts ) {
+                parent = noscript.parentNode;
+                if ( parent === null ) { continue; }
+                span = morphNoscript(noscript);
+                span.style.setProperty('display', 'inline', 'important');
+                if ( redirectTimer === undefined ) {
+                    autoRefresh(span);
+                }
+                parent.replaceChild(span, noscript);
             }
-            return to;
-        }
-        var parser = new DOMParser();
-        var doc = parser.parseFromString(
-            '<span>' + from.textContent + '</span>',
-            'text/html'
+        };
+
+        vAPI.messaging.send(
+            'contentscript.js',
+            { what: 'mustRenderNoscriptTags?' },
+            renderNoscriptTags
         );
-        return document.adoptNode(doc.querySelector('span'));
-    };
-
-    var renderNoscriptTags = function(response) {
-        if ( response !== true ) { return; }
-        var parent, span;
-        for ( var noscript of noscripts ) {
-            parent = noscript.parentNode;
-            if ( parent === null ) { continue; }
-            span = morphNoscript(noscript);
-            span.style.setProperty('display', 'inline', 'important');
-            if ( redirectTimer === undefined ) {
-                autoRefresh(span);
-            }
-            parent.replaceChild(span, noscript);
-        }
-    };
+    })();
+
+    /******************************************************************************/
+    /******************************************************************************/
 
     vAPI.messaging.send(
         'contentscript.js',
-        { what: 'mustRenderNoscriptTags?' },
-        renderNoscriptTags
-    );
-})();
-
-/******************************************************************************/
-/******************************************************************************/
-
-vAPI.messaging.send(
-    'contentscript.js',
-    { what: 'shutdown?' },
-    function(response) {
-        if ( response === true ) {
-            vAPI.shutdown.exec();
+        { what: 'shutdown?' },
+        function(response) {
+            if ( response === true ) {
+                vAPI.shutdown.exec();
+            }
         }
-    }
-);
+    );
 
-/******************************************************************************/
-/******************************************************************************/
+    /******************************************************************************/
+    /******************************************************************************/
 
 })();