Untitled

<!DOCTYPE html>
<html>
  <head>
    <link
      rel="stylesheet"
      href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/css/bootstrap.min.css"
    />
    <meta charset="utf-8" />
    <style>
      .qr-code {
        max-width: 200px;
        margin: 10px;
      }
    </style>
    <title>Генерация QR i-Store</title>
  </head>

  <body>
    <div class="container-fluid">
      <div class="text-center">
        <img
          src="https://chart.googleapis.com/chart?cht=qr&chl=Hello+World&chs=160x160&chld=L|0"
          class="qr-code img-thumbnail img-responsive"
        />
      </div>

      <div class="form-horizontal">
        <div class="form-group">
          <label class="control-label col-sm-2" for="content">
            Артикул
          </label>
          <div class="col-sm-10">
            <input
              type="text"
              size="60"
              maxlength="60"
              class="form-control"
              id="content"
              placeholder="MWP22RU/A"
            />

            <input
              type="text"
              size="60"
              maxlength="60"
              class="form-control"
              id="content2"
              placeholder="SP2R21T79F5"
            />
          </div>
        </div>
        <div class="form-group">
          <div class="col-sm-offset-2 col-sm-10">
            <button type="button" class="btn btn-default" id="generate">
              Печать
            </button>
          </div>
        </div>
      </div>
    </div>

    <script src="https://code.jquery.com/jquery-3.5.1.js"></script>

    <script>
      function htmlEncode(value) {
        return $("<div/>").text(value).html();
      }

      $(function () {
        $("#generate").click(function () {
          let finalURL =
            "https://chart.googleapis.com/chart?cht=qr&chl=" +
            htmlEncode($("#content").val() + " " + $("#content2").val()) +
            "&chs=160x160&chld=L|0";

          $(".qr-code").attr("src", finalURL);
        });
      });
    </script>
  </body>
</html>