Improve trusted-replace-node-text scriptlet

Related discussion:
brave/adblock-resources#194

assets/resources/scriptlets.js

@@ -730,6 +730,18 @@ function replaceNodeTextFn(
             safe.uboLog(logPrefix, 'Quitting');
         }
     };
+    const textContentFactory = (( ) => {
+        const out = { createScript: s => s };
+        const { trustedTypes: tt } = self;
+        if ( tt instanceof Object ) {
+            if ( typeof tt.getPropertyType === 'function' ) {
+                if ( tt.getPropertyType('script', 'textContent') === 'TrustedScript' ) {
+                    return tt.createPolicy('uBO', out);
+                }
+            }
+        }
+        return out;
+    })();
     let sedCount = extraArgs.sedCount || 0;
     const handleNode = node => {
         const before = node.textContent;
@@ -747,7 +759,9 @@ function replaceNodeTextFn(
         const after = pattern !== ''
             ? before.replace(rePattern, replacement)
             : replacement;
-        node.textContent = after;
+        node.textContent = node.nodeName === 'SCRIPT'
+            ? textContentFactory.createScript(after)
+            : after;
         if ( safe.logLevel > 1 ) {
             safe.uboLog(logPrefix, `Text before:\n${before.trim()}`);
         }