Add comment is working from terminal but not from inside the shell script

[Vineet Bansal]

Below command is working from the terminal but when running from shell script it give below error.

curl -D- -u $uname:$token -X POST \

-H "Accept: application/json" -H "Content-Type: application/json" \

"${tkt2}" \

--data @<(cat <<EOF

{

    "body": {

    "type": "doc",

    "version": 1,

    "content": [

      {

        "type":"codeBlock",

        "attrs":{

         "language":"java"

        },

        "content":[

         {

          "type":"text",

          "text":"Testing"

         }

        ]

      }

    ]

  }

}

EOF

)

Error: 

Warning: Couldn't read data from file "<(cat <<EOF