New version: jQuery 1.5.1

The day before yesterday, John Rezig (February 24) announced in a jQuery blog about the release of the next version of jQuery, which received the number 1.5.1. As always, two versions of the source code are available for downloading: the ordinary one (212 kilobytes) and the mini version (reduced to 29 kilobytes if processed with gzip).

Rezig listed forty-two major changes that were made to this version of jQuery. Basically, they boil down to degeneration, getting rid of bugs. But there is one visible change - jQuery.ajax () added three new settings:

1) Configuring isLocal controls awareness of the protocol used as a local one, that is, it allows you to supplement the auto-recognition of jQuery, which currently considers only those resources that are loaded via the “file”, “* -extension” protocols (for example, “chrome-extension”). , see bug 8152 ) and “widget”.
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2) Setting mimeType allows you to override the MIME type used in XHR.

3) Configuring xhrFields allows you to transfer an array of required settings (for each specifying a fieldName and fieldValue, that is, the name and value of a field) to an XHR object. Let's say you can give withCredentials the value true if you need to request a server from another domain and send login, password and cookies there ( MDC has an example of JS code without jQuery for Firefox - you can figure out what this setting is achieved).

This version (jQuery 1.5.1) is the first to support IE9 in this way: all the problems that previously existed in working with IE9 are either fixed in jQuery or transferred to IE9 developers to fix them in IE9.