1157411 - [Add-ons] NS_ERROR_FAILURE creating CustomEvents

Status: RESOLVED WONTFIX

(Firefox OS Graveyard :: General, defect)

Description

[Justin D'Arcangelo [:justindarc]]

Attachment: addon-custom-events.zip

Calling the `CustomEvent` constructor with the second argument from within an add-on produces an NS_ERROR_FAILURE error. This does not happen when you don't pass the second argument.

Working:
```
var e = new CustomEvent('foo');
```

Broken:
```
var e = new CustomEvent('foo', { detail: { bar: 'baz' } });
```

Tested on latest Cypress build. See attached add-on to reproduce.

Comment 1

[Justin D'Arcangelo [:justindarc]]

Fabrice: Please take a look at this. It is relatively urgent.

Comment 2

[BMO Automation]

Firefox OS is not being worked on