How to pass an object from nodejs to frontend

Step 1 -- Backend .js

myObject = { ... }

this.injectString = JSON.stringify( myObject ).replace(/\\/g, '\\\\').replace(/"/g, '\\\"')

Step 2 -- Frontend html template (ect in this case)

We only worry about parsing now, since everything should have been properly escaped
<script>
  window.myObjectFrontend = JSON.parse("<%- @injectString %>");
</script>

  @if(isset($payload))
    {{--*/
      $payload = json_encode($payload);
      $payload = preg_replace("_\\\_", "\\\\\\", $payload);
      $payload = preg_replace("/\"/", "\\\"", $payload);
    /*--}}
    <script>
      window.__payload = JSON.parse("{!!$payload!!}");
    </script>
  @endif

Here's a php blade version. Payload is any object.