Situation:

With the script below to get text string from a small hardware device over wifi.

The device is configured as a wifi AP & does not respond to browser request, it just updates its web data every second. I can see the data string with ip address in web page(refresh = new data)  &  a script tag will receive as valid data. <script type="text/javascript" src=" http://192.168.4.1">  </script>

The text string is structured as multi line JS variables & is valid json.

Problem is I need to use type: "jsonp" so I don't get cors blocked but it then parses the response that for some reason is not conforming to json (even tho the data from device is valid json

I have yet to find a way to view what is actually being parsed as the Console Response Payload shows empty.

I don't care too much if the response is modified when it is assigned to my final variable as I can "parse" it / error check in JS.

1. <script>
       var RetStr // enable access to data outside ajax
   //-----------------------
   $.ajax({
       url: "http://192.168.4.1/",
       dataType: "jsonp", // <-- dataType: "text",   gives cors error (tried "jsonp text", also)
   
       // process response
       success: function( response ) {
           retVal1 = "Response data = " + response
           console.log(retVal);
           document.getElementById('varString').innerHTML =  retVal1;
       //    RetStr = responsetext  //???
       },
   
        error: function( response,err ) {
           errVal1 = "Error data = " + response.status
           errVal2 = "Error type = " + err
           console.log(errVal1 + " , " + errVal2);
           document.getElementById('varString').innerHTML = errVal1 + " , " + errVal2;
       }
   });
   
   //-----------------------
   </script>

The above is working to the point where I get error 200 & parsererror.

I have seen some example of side stepping the json parse but I can't apply it to my example above. Long time VB programmer, just a few weeks JS.

Console:

The script from “http://192.168.4.1/?callback=jQuery351025941493595895593_1603507213807&_=1603507213808” was loaded even though its MIME type (“”) is not a valid JavaScript MIME type.