1410741 - Logged Service workers events are stringified

Status: UNCONFIRMED

(DevTools :: Console, defect, P3)

Description

[heidi.kasemir]

Attachment: Screen Shot 2017-10-22 at 12.43.10 PM.png

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:58.0) Gecko/20100101 Firefox/58.0
Build ID: 20171022100058

Steps to reproduce:

register a simple service worker on an app with the following contents:

```
self.addEventListener('fetch', function(event) {
  console.log(event.request);
});
```


Actual results:

I see `[object Request]  sw.js:5:3` logged for each request


Expected results:

I'd like to be able to expand and inspect this request object, as you can on chrome, (see screen shot with chrome on the left, firefox nightly on the right)

Comment 1

[Nicolas Chevobbe [:nchevobbe]]

So, this is not an issue with the Request object itself, since the following :

> fetch("https://jsonplaceholder.typicode.com/posts").then(console.log)

do print 
> Response { type: "basic", url: "https://jsonplaceholder.typicode.com/posts", redirected: false, status: 200, ok: true, statusText: "OK", headers: Headers, bodyUsed: false }

Comment 2

[Nicolas Chevobbe [:nchevobbe]]

Steps to reproduce:
1. Go to https://devtools-html-simple-service-worker.glitch.me/
2. Open the console

Expected results:
I see the Event objects logged from the 

Actual results:
The console shows logs like : 
>  I am installing. [object ExtendableEvent]

The event object seems to be replaced by its `.toString()` equivalent.

---

Here is the service worker code: 

    self.addEventListener('install', event => {
      console.log('I am installing.', event);
    });
    
    self.addEventListener('activate', event => {
      console.log('I am alive!', event);
    });
    
    self.addEventListener('fetch', event => {
      console.log('Someone tried to fetch something. ☺️', event);
    });

Comment 3

[Nicolas Chevobbe [:nchevobbe]]

Comment 1 is erroneous, since I tested the response object.
Here is a test for Request: 
> new Request("https://jsonplaceholder.typicode.com/posts")

The Request object is displayed as expected