"Origin null is not allowed by Access-Control-Allow-Origin" in Chrome. Why? [duplicate]

This question already has answers here: 开发者_开发知识库 XMLHttpRequest Origin null is not allowed Access-Control-Allow-Origin for file:/// to file:/// (Serverless) (10 answers) Closed 8 years ago.

I am working on some Javascript to run locally on my PC. I am using a jQuery CSV plugin (http://plugins.jquery.com/project/csv) to load load a csv file into javascript arrays. The script is simple:

$(function(){
 $.get("file.csv", function(data){
  stuff = $.csv()(data);
 })
})

In Firefox it works fine but in Chrome it says "Origin null is not allowed by Access-Control-Allow-Origin". What does that mean? I find all sorts of threads about cross-server stuff related to this error but I am just working with local files.

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Chrome doesn't believe that there's any common relationship between any two local files.

You can start it with the option "--allow-file-access-from-files" to tell it you disagree.

Thanks to the ascendant master Nick Craver for this info when I asked essentially the same question some time ago.

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If you are using Mac OS X, open up the Terminal, cd to your web root and run:

python -m SimpleHTTPServer

Then open the following URL in Chrome (or any other web browser):

http://0.0.0.0:8000

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It's like crossdomain for some unclear reason (each browser acts a bit differently regarding this issue, you could even try IE and see the results). You should try and run it through a web server, and give it an absolute path since the javascript runs locally.

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You can try running it on your apache web server. It will work.