uBlock/platform/mv3/extension/js/scripting/css-specific.js

/*******************************************************************************

    uBlock Origin Lite - a comprehensive, MV3-compliant content blocker
    Copyright (C) 2019-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
*/

// Important!
// Isolate from global scope
(async function uBOL_cssSpecific() {

/******************************************************************************/

const specificImports = self.specificImports || [];
self.specificImports = undefined;

/******************************************************************************/

const selectors = await self.cosmeticAPI.getSelectors('specific', specificImports);
self.cosmeticAPI.release();
if ( selectors.length === 0 ) { return; }
self.cssAPI.insert(`${selectors.join(',\n')}{display:none!important;}`);

/******************************************************************************/

})();

void 0;