Random variable

Refused to evaluate a string as JavaScript because ‘unsafe-eval’ is not an allowed source of script in the following Content Security Policy directive:

Meanwhile the solution is easy. Use executeScript _Sandbox:

{
  "Command": "executeScript_Sandbox",
  "Target": "return 1000 +  Math.floor(Math.random()*60000); ",
  "Value": "waittime"
},
{
  "Command": "pause",
  "Target": "${waittime}",
  "Value": ""
},