1 files changed, 89 insertions, 0 deletions
diff --git a/src/js/scriptlets/noscript-spoof.js b/src/js/scriptlets/noscript-spoof.js
new file mode 100644
index 0000000..49e9093
--- /dev/null
+++ b/src/js/scriptlets/noscript-spoof.js
@@ -0,0 +1,89 @@
+/*******************************************************************************
+
+    uBlock Origin - a comprehensive, efficient content blocker
+    Copyright (C) 2014-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
+*/
+
+// Code below has been imported from uMatrix and modified to fit uBO:
+// https://github.com/gorhill/uMatrix/blob/3f8794dd899a05e066c24066c6c0a2515d5c60d2/src/js/contentscript.js#L464-L531
+
+'use strict';
+
+/******************************************************************************/
+
+// https://github.com/gorhill/uMatrix/issues/232
+//   Force `display` property, Firefox is still affected by the issue.
+
+(( ) => {
+    const noscripts = document.querySelectorAll('noscript');
+    if ( noscripts.length === 0 ) { return; }
+
+    const reMetaContent = /^\s*(\d+)\s*;\s*url=(?:"([^"]+)"|'([^']+)'|(.+))/i;
+    const reSafeURL = /^https?:\/\//;
+    let redirectTimer;
+
+    const autoRefresh = function(root) {
+        const meta = root.querySelector('meta[http-equiv="refresh"][content]');
+        if ( meta === null ) { return; }
+        const match = reMetaContent.exec(meta.getAttribute('content'));
+        if ( match === null ) { return; }
+        const refreshURL = (match[2] || match[3] || match[4] || '').trim();
+        let url;
+        try {
+            url = new URL(refreshURL, document.baseURI);
+        } catch(ex) {
+            return;
+        }
+        if ( reSafeURL.test(url.href) === false ) { return; }
+        redirectTimer = setTimeout(( ) => {
+                location.assign(url.href);
+            },
+            parseInt(match[1], 10) * 1000 + 1
+        );
+        meta.parentNode.removeChild(meta);
+    };
+
+    const morphNoscript = function(from) {
+        if ( /^application\/(?:xhtml\+)?xml/.test(document.contentType) ) {
+            const to = document.createElement('span');
+            while ( from.firstChild !== null ) {
+                to.appendChild(from.firstChild);
+            }
+            return to;
+        }
+        const parser = new DOMParser();
+        const doc = parser.parseFromString(
+            '<span>' + from.textContent + '</span>',
+            'text/html'
+        );
+        return document.adoptNode(doc.querySelector('span'));
+    };
+
+    for ( const noscript of noscripts ) {
+        const parent = noscript.parentNode;
+        if ( parent === null ) { continue; }
+        const span = morphNoscript(noscript);
+        span.style.setProperty('display', 'inline', 'important');
+        if ( redirectTimer === undefined ) {
+            autoRefresh(span);
+        }
+        parent.replaceChild(span, noscript);
+    }
+})();
+
+/******************************************************************************/