Programmatic way to see if client browser supports PUT / DELETE methods

Is there a way to see if a client browser supports PUT or SEARCH methods for usage with JQuery & AJAX requests?

• HTML5 PUT/DELETE methods not working in Chrome?
• Are the PUT, DELETE, HEAD, etc methods available in most web browsers?

I have the following code, and PUT does not appear on the server side for me in Chromium and Chrome ... I'd like to know, if PUT isn't supported by the browser, how to change it to a POST request ... for backwards compatibility

function do_data(url, action, query) {
try {
    if ($.browser.msie) {
        var xdr = new XDomainRequest();
        if (query !== null) {
            console.log(query);
            xdr.open(action, url + '?' + $.param(query));
        } else {
            xdr.open(action, url);
        }
        xdr.onload = function() {
            var data = $.parseJSON(this.responseText);
            show_data(data);
        };
        xdr.send();
    } else {
        if (query !== null) {
            $.ajax({
                url: url,
                data: query,
                type: action,
                success: function(data) {
                    console.log(data);
                },
                error: function(jqXHR, textStatus, errorThrown) {
                    console.log(textStatus);
                }
            });
        } else {
            console.log(query);
            $.ajax({
                url: url,
                type: action,
                success: function(msg) {
                    console.log(data);
                }
            });
        }
    }
} catch (e) {}
}

Using the above code, if I use "PUT" on Chromium / Chrome, error: function(jqXHR, textStatus, errorThrown) will print out simply error.

On the server side开发者_C百科, I see the REQUEST_METHOD: OPTIONS and not PUT.

Just to confirm, for anyone who comes across this ... there isn't a programmatic way

---

The common way of handling the lack of PUT and DELETE support in most browsers is to use HTTP POST tunneling. Basically you use a POST and add the real VERB to a X-HTTP-Method-Override HTTP header. On the service you check for the latter, if not found use the normal HTTP method.

See here for more info.