easyar Webar，TokenThreeJsExample那个例子，在网页上打开摄像头，点击识别开始后报错，请问我还需要做啥啊。Failed to load resource: net::ERR_FILE_NOT_FOUND

Question

Access to fetch at 'file:///C:/Users/Administrator/Downloads/EasyAR-WebAR-Demo/EasyAR-WebAR-Demo-master/html/TokenThreeJsExample/Client-end%20(Target%20Recognition)%20URL' from origin 'null' has been blocked by CORS policy: Cross origin requests are only supported for protocol schemes: http, data, chrome, chrome-extension, chrome-untrusted, https.

还有请问 POST  报错 405 (Method Not Allowed)是因为啥啊，在本地运行的

1. {timestamp: '2022-03-21T03:30:02.054+0000', status: 405, error: 'Method Not Allowed', message: "Request method 'POST' not supported", path: '/'}
   1. error: "Method Not Allowed"
   2. message: "Request method 'POST' not supported"
   3. path: "/"
   4. status: 405
   5. timestamp: "2022-03-21T03:30:02.054+0000"