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Big Change Update
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yeongpin
250
uBlock0.chromium/js/vapi-background-ext.js
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250
uBlock0.chromium/js/vapi-background-ext.js
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/*******************************************************************************
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uBlock Origin - a comprehensive, efficient content blocker
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Copyright (C) 2017-present Raymond Hill
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see {http://www.gnu.org/licenses/}.
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Home: https://github.com/gorhill/uBlock
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*/
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/******************************************************************************/
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// https://github.com/uBlockOrigin/uBlock-issues/issues/1659
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// Chromium fails to dispatch onCreatedNavigationTarget() events sometimes,
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// so we synthetize these missing events when this happens.
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// https://github.com/uBlockOrigin/uAssets/issues/10323
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// Also mind whether the new tab is launched from an external application.
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vAPI.Tabs = class extends vAPI.Tabs {
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constructor() {
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super();
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this.tabIds = new Set();
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browser.tabs.onCreated.addListener(tab => {
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this.onCreatedHandler(tab);
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});
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}
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onCreatedHandler(tab) {
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if ( typeof tab.openerTabId === 'number' ) { return; }
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if ( tab.index !== 0 ) { return; }
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if ( tab.url !== '' ) { return; }
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this.tabIds.add(tab.id);
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}
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onCreatedNavigationTargetHandler(details) {
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this.tabIds.delete(details.tabId);
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super.onCreatedNavigationTargetHandler(details);
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}
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onCommittedHandler(details) {
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if ( details.frameId === 0 ) {
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this.synthesizeNavigationTargetEvent(details);
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}
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super.onCommittedHandler(details);
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}
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onRemovedHandler(tabId, details) {
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this.tabIds.delete(tabId);
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super.onRemovedHandler(tabId, details);
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}
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synthesizeNavigationTargetEvent(details) {
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if ( this.tabIds.has(details.tabId) === false ) { return; }
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this.tabIds.delete(details.tabId);
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const isClientRedirect =
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Array.isArray(details.transitionQualifiers) &&
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details.transitionQualifiers.includes('client_redirect');
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const isStartPage = details.transitionType === 'start_page';
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if ( isClientRedirect === false && isStartPage === false ) { return; }
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this.onCreatedNavigationTargetHandler({
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tabId: details.tabId,
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sourceTabId: details.tabId,
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sourceFrameId: 0,
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url: details.url,
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});
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}
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};
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/******************************************************************************/
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{
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const extToTypeMap = new Map([
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['eot','font'],['otf','font'],['svg','font'],['ttf','font'],['woff','font'],['woff2','font'],
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['mp3','media'],['mp4','media'],['webm','media'],
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['gif','image'],['ico','image'],['jpeg','image'],['jpg','image'],['png','image'],['webp','image']
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]);
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const parsedURL = new URL('https://www.example.org/');
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// Extend base class to normalize as per platform
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vAPI.Net = class extends vAPI.Net {
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normalizeDetails(details) {
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// Chromium 63+ supports the `initiator` property, which contains
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// the URL of the origin from which the network request was made
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if ( details.initiator && details.initiator !== 'null' ) {
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details.documentUrl = details.initiator;
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}
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const type = details.type;
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if ( type === 'imageset' ) {
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details.type = 'image';
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return;
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}
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if ( type !== 'other' ) { return; }
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// Try to map known "extension" part of URL to request type
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if ( details.responseHeaders === undefined ) {
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parsedURL.href = details.url;
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const path = parsedURL.pathname;
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const pos = path.indexOf('.', path.length - 6);
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if ( pos !== -1 ) {
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details.type = extToTypeMap.get(path.slice(pos + 1)) || type;
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}
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return;
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}
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// Try to extract type from response headers
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const ctype = this.headerValue(details.responseHeaders, 'content-type');
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if ( ctype.startsWith('font/') ) {
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details.type = 'font';
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} else if ( ctype.startsWith('image/') ) {
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details.type = 'image';
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} else if ( ctype.startsWith('audio/') || ctype.startsWith('video/') ) {
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details.type = 'media';
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}
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}
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// https://www.reddit.com/r/uBlockOrigin/comments/9vcrk3/
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// Some types can be mapped from 'other', thus include 'other' if and
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// only if the caller is interested in at least one of those types
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denormalizeTypes(types) {
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if ( types.length === 0 ) {
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return Array.from(this.validTypes);
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}
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const out = new Set();
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for ( const type of types ) {
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if ( this.validTypes.has(type) ) {
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out.add(type);
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}
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}
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if ( out.has('other') === false ) {
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for ( const type of extToTypeMap.values() ) {
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if ( out.has(type) ) {
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out.add('other');
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break;
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}
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}
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}
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return Array.from(out);
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}
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// https://github.com/uBlockOrigin/uBlock-issues/issues/2063
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// Do not interfere with root document
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suspendOneRequest(details) {
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this.onBeforeSuspendableRequest(details);
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if ( details.type === 'main_frame' ) { return; }
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return { cancel: true };
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}
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unsuspendAllRequests(discard = false) {
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if ( discard === true ) { return; }
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const toReload = [];
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for ( const tabId of this.unprocessedTabs.keys() ) {
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toReload.push(tabId);
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}
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this.removeUnprocessedRequest();
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for ( const tabId of toReload ) {
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vAPI.tabs.reload(tabId);
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}
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}
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};
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}
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/******************************************************************************/
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// https://github.com/uBlockOrigin/uBlock-issues/issues/548
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// Use `X-DNS-Prefetch-Control` to workaround Chromium's disregard of the
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// setting "Predict network actions to improve page load performance".
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vAPI.prefetching = (( ) => {
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let listening = false;
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const onHeadersReceived = function(details) {
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details.responseHeaders.push({
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name: 'X-DNS-Prefetch-Control',
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value: 'off'
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});
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return { responseHeaders: details.responseHeaders };
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};
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return state => {
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const wr = chrome.webRequest;
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if ( state && listening ) {
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wr.onHeadersReceived.removeListener(onHeadersReceived);
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listening = false;
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} else if ( !state && !listening ) {
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wr.onHeadersReceived.addListener(
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onHeadersReceived,
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{
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urls: [ 'http://*/*', 'https://*/*' ],
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types: [ 'main_frame', 'sub_frame' ]
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},
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[ 'blocking', 'responseHeaders' ]
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);
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listening = true;
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}
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};
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})();
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/******************************************************************************/
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vAPI.scriptletsInjector = (( ) => {
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const parts = [
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'(',
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function(details) {
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if ( typeof self.uBO_scriptletsInjected === 'string' ) { return; }
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const doc = document;
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const { location } = doc;
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if ( location === null ) { return; }
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const { hostname } = location;
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if ( hostname !== '' && details.hostname !== hostname ) { return; }
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let script;
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try {
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script = doc.createElement('script');
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script.appendChild(doc.createTextNode(details.scriptlets));
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(doc.head || doc.documentElement).appendChild(script);
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self.uBO_scriptletsInjected = details.filters;
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} catch (ex) {
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}
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if ( script ) {
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script.remove();
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script.textContent = '';
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}
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return 0;
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}.toString(),
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')(',
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'json-slot',
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');',
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];
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const jsonSlot = parts.indexOf('json-slot');
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return (hostname, details) => {
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parts[jsonSlot] = JSON.stringify({
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hostname,
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scriptlets: details.mainWorld,
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filters: details.filters,
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});
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return parts.join('');
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};
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})();
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/******************************************************************************/
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