regex is not working

Gatling (Open-Source)
1

Below is the sample response string:

“CallbackHandlerPath”:"/ciqdotnet/widget/handlers/ProprietaryDataandAnalysisfromSPCapitalIQ_930.axd",

I need value of this CallbackHandlerPath which are multiple in response.

I am trying like this

.exec(http("Dashboard")
.get(uri10 + "/CIQDotNet/my/dashboard.aspx")
//new
// .disableFollowRedirect
.headers(headers_0).check(regex("Welcome").find(1).exists)
  .check(regex(""" "CallbackHandlerPath":([^:]*),""").findAll.saveAs("CallbackHandlerPathList")))
.foreach("${CallbackHandlerPathList}", "handler") {
 exec(session => {
  val playerMap = session("handler")
  println("handler"+session("handler").as[String])

 // val playerId = playerMap("playerId")
  session

 })
}



But still getting an error  regex( "CallbackHandlerPath\":(.*), ).find(0).exists, found no      1 (16.67%)
thing





I checked the response of the call which is correct... Please suggest what am I doing wrong ..