No 'Access-Control-Allow-Origin' header is present on the requested resource. about deprecated-dataapis HOT 6 CLOSED

you have to use jsonp. I do it too from localhost and it works.

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I keep getting the "No 'Access-Control-Allow-Origin' header is present on the requested resource." error when I use jsonp and am using a local host. Is a different host/server required for access?

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Can you add a snippet/gist of your ajax call?

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I get the error when I run it from a local server (python and Atom.io http://atom.io/ app). Would that be the problem?

code begin:
// get ticker symbol
modApi.getTickerSymbol = function(name) {
var url = "http://dev.markitondemand.com/MODApis/Api/v2/Lookup/jsonp"
var request = {
input: name,
callback: "my_function"
}

return $.getJSON(url, request);

};
code end

Chris

On Jun 16, 2016, at 3:00 PM, Eric Nolte [email protected] wrote:

Can you add a snippet/gist of your ajax call?

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To get you a quick answer, the problem appears to be getJSON not handling the request as a jsonp dataType.

According to jQuery's docs:

JSONP

If the URL includes the string "callback=?" (or similar, as defined by the server-side API), the request is treated as JSONP instead. See the discussion of the jsonp data type in $.ajax() for more details.

And the requested url using .getJSON looks like:

http://dev.markitondemand.com/MODApis/Api/v2/Lookup/jsonp?url=http%3A%2F%2F…is%2FApi%2Fv2%2FLookup%2Fjsonp&input=F&callback=my_function&dataType=jsonp

Which certainly looks like it should be handled as JSONP. However, in practice, it isn't. So I'd recommend just doing the longhand $.ajax call for now:

modApi.getTickerSymbol = function(name) {
    var url = "http://dev.markitondemand.com/MODApis/Api/v2/Lookup/jsonp"
    var request = {
        url: url,
        input: name,
        callback: "my_function",
        dataType: 'jsonp'
    }

    return $.ajax(request);
};

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Thank you.

Chris Billiau

On Jun 16, 2016, at 3:21 PM, Eric Nolte [email protected] wrote:

To get you a quick answer, the problem appears to be getJSON not handling the request as a jsonp dataType.

According to jQuery's docs:

JSONP

If the URL includes the string "callback=?" (or similar, as defined by the server-side API), the request is treated as JSONP instead. See the discussion of the jsonp data type in $.ajax() for more details.
And the requested url using .getJSON looks like:

http://dev.markitondemand.com/MODApis/Api/v2/Lookup/jsonp?url=http%3A%2F%2F…is%2FApi%2Fv2%2FLookup%2Fjsonp&input=F&callback=my_function&dataType=jsonp
Which certainly looks like it should be handled as JSONP. However, in practice, it isn't. So I'd recommend just doing the longhand $.ajax call for now:

modApi.getTickerSymbol = function(name) {
var url = "http://dev.markitondemand.com/MODApis/Api/v2/Lookup/jsonp"
var request = {
url: url,
input: name,
callback: "my_function",
dataType: 'jsonp'
}

return $.ajax(request);

};
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