visualization widget display a local jt file failed
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I use visualization widget to display a local jt file,but failed. The url is like this: file:///C:/xxx.jt file, but error occurs like below: Uncaught (in promise) TypeError: Cannot read property 'init' of null at d8b9c9c6-0206-4962-9d2f-a93bfac15d87:31 at new Promise (<anonymous>) at e.createChannel (d8b9c9c6-0206-4962-9d2f-a93bfac15d87:31) at t.<anonymous> (d8b9c9c6-0206-4962-9d2f-a93bfac15d87:31) at d8b9c9c6-0206-4962-9d2f-a93bfac15d87:16 at Object.next (d8b9c9c6-0206-4962-9d2f-a93bfac15d87:16) at d8b9c9c6-0206-4962-9d2f-a93bfac15d87:16 at new Promise (<anonymous>) at u (d8b9c9c6-0206-4962-9d2f-a93bfac15d87:16) at t.processMessage (d8b9c9c6-0206-4962-9d2f-a93bfac15d87:31)