[GitHub] [incubator-iotdb] SteveYurongSu edited a comment on pull request #777: [IoTDB-400] Support rest api

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SteveYurongSu edited a comment on pull request #777:
URL: https://github.com/apache/incubator-iotdb/pull/777#issuecomment-619360460


   There were some problems when I tried to use the Query History Visualization Tool.
   
   I enanbled the setting `http_service` in iotdb-engine.properties and started the IoTDB server. I tried to visit the webpage `localhost:8181` but recieved the message `HTTP ERROR 404 Not Found`. The same problem would not be reproduced in release/0.9.2..
   
   Then I tried to open the index.html file directly (by double-clink) and I found following problems.
   
   1. The request of http://localhost:8181/rest/server_information was not polling, and the server information would not be updated after the page was loaded. (It seems that the same problem is in release/0.9.x)
   
   2. When I sent the request 'http://localhost:8181/rest/sql_arguments' in the brower's address bar, I would recieved the right response. But I notied that when the brower sent the request in the background, the brower would recieved `Access to fetch at 'http://localhost:8181/rest/sql_arguments' from origin 'null' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: It does not have HTTP ok status.` The recieved message could be found in the web console. 
   


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