diff --git a/lib/runtime/LoadScriptRuntimeModule.js b/lib/runtime/LoadScriptRuntimeModule.js
index b6b2f3e381c..d0d7d02613d 100644
--- a/lib/runtime/LoadScriptRuntimeModule.js
+++ b/lib/runtime/LoadScriptRuntimeModule.js
@@ -121,6 +121,16 @@ class LoadScriptRuntimeModule extends HelperRuntimeModule {
 					this._withFetchPriority ? ", fetchPriority" : ""
 				}`,
 				[
+					// try importScripts first
+					"if(__webpack_require__.g && __webpack_require__.g.importScripts) {",
+					Template.indent([
+						"__webpack_require__.g.importScripts(url)",
+						"done()",
+						"return;",
+					]),
+					"}",
+
+
 					"if(inProgress[url]) { inProgress[url].push(done); return; }",
 					"var script, needAttach;",
 					"if(key !== undefined) {",