What are options

What are options

A string containing the URL to which what are options request is sent. Type to its MIME type, which gets sent in the Accept request header. Note: You will need to specify a complementary entry for this type in converters for this to work properly.

If you need synchronous requests, set this option to false. Note that synchronous requests may temporarily lock the browser, disabling any actions while the request is active. Use this to set custom headers, etc. The jqXHR and settings objects are passed as arguments.

If set to false, it will force requested pages not to be cached by the browser. Note: Setting cache to false will only work correctly with HEAD and GET requests. The parameter is not needed for other types of requests, except in IE8 when a POST is made to a URL that has already been requested by a GET. Query will parse the response, given its content type. UTF-8″, which is fine for most cases. This object will be the context of all Ajax-related callbacks.

Each converter’s value is a function that returns the transformed value of the response. It is converted to a query string, if not already a string. It’s appended to the url for GET-requests. This is a pre-filtering function to sanitize the response. You should return the sanitized data. XML MIME type will yield XML, in 1. URL unless the cache option is set to true.

Note: This will turn POSTs into GETs for remote-domain requests. Cross-domain “json” requests that have a callback placeholder, e. JSONP unless the request includes jsonp: false in its request options. JSON is rejected and a parse error is thrown.

Loads in a JSON block using JSONP. A function to be called if the request fails. Whether to trigger global Ajax event handlers for this request. This can be used to control various Ajax Events. Allow the request to be successful only if the response has changed since the last request.

This is done by checking the Last-Modified header. Default value is false, ignoring the header. Query does not recognize it as such by default. Override the callback function name in a JSONP request. Specify the callback function name for a JSONP request. You may want to specify the callback when you want to enable better browser caching of GET requests. A mime type to override the XHR mime type.

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