use setTimeout to defer the call to resolve()

lib/lazy/content-lazy-loader.js

@@ -68,8 +68,8 @@ this.lazyLoader = this.lazyLoader || (() => {
 	function lazyLoadEnd(maxTimeoutId, idleTimeoutId, observer, options, resolve) {
 		clearTimeout(maxTimeoutId);
 		timeout.clear(idleTimeoutId);
-		resolve();
 		injectScript(SCRIPT_AFTER_PATH);
+		setTimeout(resolve, 100);
 		observer.disconnect();
 	}