diff --git a/src/Components/deviceFrame/index.js b/src/Components/deviceFrame/index.js
index bab9776..1e3d9a9 100644
--- a/src/Components/deviceFrame/index.js
+++ b/src/Components/deviceFrame/index.js
@@ -48,17 +48,17 @@ var configMap = {
 
 function DeviceFrame(props) {
     var [config, setConfig] = useState({})
-    var [iframeKey, setIframeKey] = useState(100000);
+    var [cacheKey, setCacheKey] = useState(new Date().getTime());
 
     useEffect(() => {
         setConfig(configMap[props.device])
     }, [props.device, config])
 
-    var refresh = () => setIframeKey(Math.round(Math.random() * 10000));
+    var refresh = () => setCacheKey(new Date().getTime());
 
     useEffect(() => {
-        console.log(props.htmlUrl)
-        refresh()
+        console.log('触发更新', props.htmlUrl);
+        refresh();
         props.refreshQrCode()
     }, [props.htmlUrl])
 
@@ -76,7 +76,6 @@ function DeviceFrame(props) {
                 {
                     props.htmlUrl
                     && <iframe
-                        key={iframeKey}
                         id='deviceFrame'
                         style={{
                             position: 'absolute',
@@ -86,7 +85,7 @@ function DeviceFrame(props) {
                             paddingBottom: config.offsetv
                         }}
                         title='preview'
-                        src={baseUrl + props.htmlUrl + '?time=' + new Date().getTime()}
+                        src={baseUrl + props.htmlUrl + '?cacheKey=' + cacheKey}
                         width={config.width}
                         height={config.height}
                         frameBorder={'0'}/>