I am trying to pass a list of subject id's as a query param in an Ajax get-request, so that it only returns data pertaining to the subject id's I passed in. The API is set up to receive a subjectId param as a single number, or string of numbers separated by commas. I have made sure that what I am sending is exactly that -- "13,14,15" -- but when I make the request, the get URL encodes the string so that it looks like this: 13%2C14%2C15%2C.

The URL I want to generate is (I'm just using placeholders for the domain name and session token) https://get-url.com/get-filter-counts?sessionToken=abcdefg&subjectId=13,14,15. When I test this out in the browser, it works.

The URL I'm actually generating is https://get-url.com/get-filter-counts?sessionToken=abcdefg&subjectId=13%2C14%2C15%2C

I've tried researching this issue but I'm not even sure what it is that's happening there. I've looked at a ton of examples of passing strings as query params in an Ajax request, and as far as I can tell I'm doing it correctly. I've hard-coded a string into the params below just to demonstrate:

 $.ajax({
      type: "GET",
      url: getURL,
      dataType: "JSON",
      data: {
        sessionToken: sessionToken,
        subjectId: "13,14,15"
      },

      //process the returned result of the Ajax call
      success: (ajaxResult) => {
        console.log("subject id list:", subjectId);
        console.log("Ajax result:", ajaxResult);
      },

In the success method, the console returns the correct subjectId list as well as the data pertaining to those subject id's. But I am unable to get the results in the browser because of this URL issue.

How can I remove the encoding (if that's what's happening?) from the string in the url? Thanks.