I have done all the steps mentioned in here.
But this still gives the error :
The Same Origin Policy disallows reading the remote resource at https://wtiotsstorageaccount.blob.core.windows.net/wdiotscontainer/Capture.JPG?sv=2017-11-09&ss=bfqt&srt=sco&sp=rwdlacup&se=2018-07-19T19:26:21Z&st=2018-07-19T11:26:21Z&spr=https,http&sig=%2FM1%2BRpDOZiHduYdtf9%2FpnrVTn97fV2ixglKh5bfjz6Y%3D%20&comp=block&blockid=YmxvY2stMDAwMDAw. (Reason: CORS header ‘Access-Control-Allow-Origin’ missing