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/*******************************************************************************
uBlock Origin - a comprehensive, efficient content blocker
Copyright (C) 2017-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';
/* global HTMLDocument, XMLDocument */
// For background page, auxiliary pages, and content scripts.
/******************************************************************************/
if (
self.browser instanceof Object &&
self.browser instanceof Element === false
) {
self.chrome = self.browser;
} else {
self.browser = self.chrome;
}
/******************************************************************************/
// https://bugzilla.mozilla.org/show_bug.cgi?id=1408996#c9
var vAPI = self.vAPI; // jshint ignore:line
// https://github.com/chrisaljoudi/uBlock/issues/464
// https://github.com/chrisaljoudi/uBlock/issues/1528
// A XMLDocument can be a valid HTML document.
// https://github.com/gorhill/uBlock/issues/1124
// Looks like `contentType` is on track to be standardized:
// https://dom.spec.whatwg.org/#concept-document-content-type
// https://forums.lanik.us/viewtopic.php?f=64&t=31522
// Skip text/plain documents.
if (
(
document instanceof HTMLDocument ||
document instanceof XMLDocument &&
document.createElement('div') instanceof HTMLDivElement
) &&
(
/^image\/|^text\/plain/.test(document.contentType || '') === false
) &&
(
self.vAPI instanceof Object === false || vAPI.uBO !== true
)
) {
vAPI = self.vAPI = { uBO: true };
}
/*******************************************************************************
DO NOT:
- Remove the following code
- Add code beyond the following code
Reason:
- https://github.com/gorhill/uBlock/pull/3721
- uBO never uses the return value from injected content scripts
**/
void 0;
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