Basic Authentication Using Jquery/ajax

I am trying to create basic authentication page where my form has three fields username password grant type On submitting a form I just want to display returned response from a

Solution 1:

I usually add Headers like this ( the code is from a "Query a remote service using the web proxy in Sharepoint", here ) :

    $.ajax({
    url: "../_api/SP.WebProxy.invoke",
    type: "POST",
    data: JSON.stringify(
        {
            "requestInfo": {
                "__metadata": { "type": "SP.WebRequestInfo" },
                "Url": url,
                "Method": "GET",
                "Headers": {
                    "results": [{
                        "__metadata": { "type": "SP.KeyValue" },
                        "Key": "Accept",
                        "Value": "application/json;odata=verbose",
                        "ValueType": "Edm.String"
                    }]
                }
            }
        }),
    headers: {
        "Accept": "application/json;odata=verbose",
        "Content-Type": "application/json;odata=verbose",
        "Authorization": "yourkeyvalueforauthorizationEXAMPLE",
        "X-RequestDigest": $("#__REQUESTDIGEST").val()
    },
    success: successHandler,
    error: errorHandler
});

Let me know how it goes