1316833 - "JSON" tab is empty under "Params" if sending to 404

Status: RESOLVED DUPLICATE of bug 1309243

(DevTools :: Netmonitor, defect)

Description

[Jens]

Attachment: Screenshot.png

STR:
I've made a minimal example you can view at http://codepen.io/nachtigall/pen/QGyBZj (full view, better for devtools at http://codepen.io/nachtigall/full/QGyBZj/)

Code is just:

fetch('https://developer.mozilla.org/this-gives-404', {
  method: 'post',
  body: JSON.stringify({
    someProperty: 'Prop that we send. This should be visible'
  })
});

The console view with "net" shows the JSON being sent correctly. However, the netmonitor just has an empty JSON giving the impression that nothing has been send. See Screenshot.