1461411 - Can't set cookies in dev tools after Firefox 50

Status: NEW

(DevTools :: Storage Inspector, defect, P3)

Description

[EricS]

User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:60.0) Gecko/20100101 Firefox/60.0
Build ID: 20180509235650

Steps to reproduce:

Try adding a cookie within the dev tools on a page that spits out JSON. You can't do it!

Here's a four line program. Browse to localhost:8080/ and try to set a cookie:
const express = require('express');
const app = express();
app.get('/', (req, res) => res.json({testing: true}));
app.listen(8080, () => console.log('Listening on 8080..'));


Actual results:

Nothing happens when you hit the + button to create a new cookies under the Storage tab in devtools. You can modify existing cookies but the + button has no effect.


Expected results:

It should have the same behavior as a non-JSON page. What I have to do is load another page on the domain that's not JSON in order to be able to create cookies. This started around FF 50. Currently on 60.0+build2-0ubuntu0.16.04.1.

Thanks for reviewing this bug!

Comment 1

[Mike Ratcliffe [:miker] [:mratcliffe] [:mikeratcliffe]]

This is probably caused by the fact that the JSON page would not have the cookie observers we would need in order to detect new cookies.