JSON.stringify bug in firefox

Question

I'm developing a web analytics for my app.

Client side, I send to the server the window.location object over a JSON.stringify(window.location).

The object is properly stringified in chrome, IE, opera... but in Firefox, it just return {"constructor":{}}.

What's happen with Firefox ?

freakish · Accepted Answer · 2013-12-03 11:11:25Z

2

I don't know why it doesn't work under FireFox (I assume it has something to do with the fact that properties of window.location are actually getters/setters in FireFox), but here's a simple solution: just copy the object.

var copy = {};
for (var i in window.location) {
    copy[i] = window.location[i];
}
JSON.stringify(copy);

answered Dec 3, 2013 at 11:11

freakish

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1 Comment

Boris Zbarsky Over a year ago

It has to do with the properties not being own properties of the object but rather properties on the prototype, which is what the spec requires...

h2ooooooo · Accepted Answer · 2013-12-03 11:10:19Z

1

Alternately, can't you simply create a new object that isn't the Location API, but just a simple KVP object?

JSON.stringify({
    href:     window.location.href,
    protocol: window.location.protocol,
    host:     window.location.host,
    hostname: window.location.hostname,
    port:     window.location.port,
    pathname: window.location.pathname,
    search:   window.location.search,
    hash:     window.location.hash,
    username: window.location.username,
    password: window.location.password,
    origin:   window.location.origin
});

answered Dec 3, 2013 at 11:10

h2ooooooo

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Comments

Basilevs · Accepted Answer · 2013-12-03 11:03:32Z

0

window.location is an instance of Location interface. You probably want to get its url as string. Try window.location.href instead.

answered Dec 3, 2013 at 11:03

Basilevs

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3 Comments

Basilevs Over a year ago

@freakish, I'm pretty sure OP wants to send URL of a current page.

freakish Over a year ago

Where does OP state that? There's even more: he clearly states that "The object is properly stringified in chrome", so he actually want the object jsonified.

Basilevs Over a year ago

You can also jsonify a string. And href contains all the information from the object. It is not conveniently parsed though.

MarcoS · Accepted Answer · 2013-12-03 11:33:56Z

0

Freakish solution does work.

var window_location = {};
for (var i in window.location) {
    window_location[i] = window.location[i];
}
alert(JSON.stringify(window_location));

See this in action here...

edited Dec 3, 2013 at 11:33

answered Dec 3, 2013 at 11:05

MarcoS

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