diff --git a/assets/middleLayer_for_njstar/script/middleLayer.ts b/assets/middleLayer_for_njstar/script/middleLayer.ts
index 626df0f2fff5933a26b1c808cd9431ec2b41e6fe..496485656a891c3ede45db5394c27aa7da187a37 100644
--- a/assets/middleLayer_for_njstar/script/middleLayer.ts
+++ b/assets/middleLayer_for_njstar/script/middleLayer.ts
@@ -10,7 +10,7 @@ export default class NewClass extends middleLayerBase {
     (<any>window).courseware.getData = async (callback) => {
       let data = null;
       if (this.courseItem && this.courseItem.data) {
-        data = this.courseItem.data.replace("http://", "https://")
+        data = this.courseItem.data.replace(/http:/g, "https:");
         this.log("===成功调用getData===" + data);
         data = JSON.parse(data);
       }