diff --git a/public/react/src/modules/courses/Resource/Fileslistitem.js b/public/react/src/modules/courses/Resource/Fileslistitem.js
index fe0574f56..27d8f471b 100644
--- a/public/react/src/modules/courses/Resource/Fileslistitem.js
+++ b/public/react/src/modules/courses/Resource/Fileslistitem.js
@@ -1,5 +1,5 @@
 import React,{ Component } from "react";
-import { WordsBtn,ActionBtn,getmyUrl } from 'educoder';
+import { WordsBtn,ActionBtn,getmyUrl,getUrl } from 'educoder';
 import {Tooltip,message,Input, Button} from 'antd';
 import {Link} from 'react-router-dom';
 import axios from 'axios'
@@ -60,7 +60,8 @@ class Fileslistitem extends Component{
 				if(list.content_type==="video/mp4"){
 					this.setState({
 						videoModalObj:true,
-						file_url:"https://"+document.domain+list.url+'?file_name='+list.title,
+						// file_url:"https://"+document.domain+list.url+'?file_name='+list.title+"&disposition=MP4",
+						file_url:getUrl()+list.url+'?file_name='+list.title+'&disposition=MP4',
 					})
 					return
 				}else{
@@ -92,7 +93,9 @@ class Fileslistitem extends Component{
 						if(list.content_type==="video/mp4"){
 							this.setState({
 								videoModalObj:true,
-								file_url:"https://"+document.domain+list.url+'?file_name='+list.title,
+								// file_url:"https://"+document.domain+list.url+'?file_name='+list.title+'&disposition=MP4',
+								file_url:getUrl()+list.url+'?file_name='+list.title+'&disposition=MP4',
+
 							})
 							return
 						}else{
@@ -126,10 +129,11 @@ class Fileslistitem extends Component{
 	}
 
 	Clicktobroadcastthevideo=(bool,url)=>{
-		this.setState({
-			videoModalObj:bool,
-			file_url:"https://"+document.domain+url,
-		})
+			this.setState({
+				videoModalObj:bool,
+				 // file_url:"https://"+document.domain+url+'&disposition=MP4',
+				file_url:getUrl()+url+'&disposition=MP4',
+			})
 	}
 
 
@@ -231,8 +235,8 @@ class Fileslistitem extends Component{
 							width={800 - 1}
 						>
 							<video
-								autoplay="true"
-								src={file_url} controls="true" controlslist="nodownload">
+								preload="auto"
+								src={file_url} controls="true" >
 								您的浏览器不支持 video 标签。
 							</video>
 							<div className="df copyLine">
@@ -259,7 +263,7 @@ class Fileslistitem extends Component{
 					{...this.props}
 					visible={this.state.Showoldfiles}
 					allfiles={this.state.allfiles}
-					Clicktobroadcastthevideo={(bool,urls)=>this.Clicktobroadcastthevideo(bool,urls)}
+					Clicktobroadcastthevideo={(bool,urls,index)=>this.Clicktobroadcastthevideo(bool,urls,index)}
 					closaoldfilesprops={this.closaoldfilesprops}
 				/>
 				<style>{`
diff --git a/public/react/src/modules/courses/coursesPublic/Showoldfiles.js b/public/react/src/modules/courses/coursesPublic/Showoldfiles.js
index 3b4928d4d..53148913f 100644
--- a/public/react/src/modules/courses/coursesPublic/Showoldfiles.js
+++ b/public/react/src/modules/courses/coursesPublic/Showoldfiles.js
@@ -49,6 +49,9 @@ class Showoldfiles extends Component{
 	isaboxonClick=(item)=>{
 		this.props.Clicktobroadcastthevideo(true,item.url+'&file_name='+item.title);
 	}
+	isaboxonClicks=(item)=>{
+		this.props.Clicktobroadcastthevideo(true,item.url+'?file_name='+item.title);
+	}
 	render(){
 		let {visible,allfiles}=this.props;
 
@@ -188,7 +191,7 @@ class Showoldfiles extends Component{
 
 														{
 															allfiles&&allfiles.content_type&&allfiles.content_type==="video/mp4"?
-																<a  className={"isabox"} target="_blank"  onClick={()=>this.isaboxonClick(allfiles)}>{allfiles.title}</a>
+																<a  className={"isabox"} target="_blank"  onClick={()=>this.isaboxonClicks(allfiles)}>{allfiles.title}</a>
 																:
 																<a className={"isabox"} href={allfiles.url} target="_blank" >{allfiles.title}</a>
 														}