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uBlock/src/js/scriptlets/should-inject-contentscript.js

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/*******************************************************************************
uBlock Origin - a browser extension to block requests.
Copyright (C) 2018-present Raymond Hill
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see {http://www.gnu.org/licenses/}.
Home: https://github.com/gorhill/uBlock
*/
'use strict';
// If content scripts are already injected, we need to respond with `false`,
// to "should inject content scripts?"
(function() {
try {
return vAPI.uBO !== true;
} catch(ex) {
}
return true;
})();