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Home/ Questions/Q 8247339
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Editorial Team
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Editorial Team
Asked: June 7, 20262026-06-07T22:48:57+00:00 2026-06-07T22:48:57+00:00

I am building a Campfire client that will run in WebOS and as a

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I am building a Campfire client that will run in WebOS and as a Chrome desktop web app.
I have the following code:

logIn: function(){
    this.apiToken = this.$.loginScreen.$.apiToken.getValue();
    this.subdomain = this.$.loginScreen.$.subdomain.getValue();
    this.fullURL = 'https://' + this.subdomain + '.campfirenow.com/';
    this.$.roomService.url = this.fullURL + 'rooms.json';
    var response = this.$.roomService.send({'Authorization': "Bearer " + this.apiToken, 'Access-Control-Allow-Origin': this.subdomain + '.campfirenow.com'});

The ‘roomService’ is like this:

{name: "roomService", kind: "enyo.WebService", url: null, onResponse: "successfulAlert", onError: "someFailure"}

And in Chromium I keep getting the following XMLHttpRequest error:

Origin null is not allowed by Access-Control-Allow-Origin.

Any ideas?

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  1. Editorial Team
    Editorial Team
    2026-06-07T22:48:59+00:00Added an answer on June 7, 2026 at 10:48 pm

    You might want to take a look at this StackOverflow question:

    XmlHttpRequest error: Origin null is not allowed by Access-Control-Allow-Origin

    You’re being blocked by trying to run this from a file:// URL.

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