Requirejs' order does not work with priority config and CDN dependencies

问题

The following main.js code do not respect the order of priorities (sometimes underscore.js is not loaded when backbone.js needs it):

require({
    baseUrl:'/scripts',
    priority:[
        "http://ajax.googleapis.com/ajax/libs/jquery/1.5.2/jquery.min.js",
        "http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.12/jquery-ui.min.js",
        "http://ajax.cdnjs.com/ajax/libs/underscore.js/1.1.6/underscore-min.js",
        "http://ajax.cdnjs.com/ajax/libs/backbone.js/0.3.3/backbone-min.js"
    ]
    },["src/app"], 
    function (app) {
        app.start();
});

Adding order! before those CDN dependencies fails with a order.js not found error.

回答1:

I recently updated the RequireJS docs, but I have not pushed the change to the site yet:

The "priority" configuration cannot load resources loaded by plugins. So to accomplish what you are trying to do, you can just nest require() calls, which will give you the behavior you want:

require(
    {
        baseUrl:'/scripts'
    },
    [
        "require",
        "order!http://ajax.googleapis.com/ajax/libs/jquery/1.5.2/jquery.min.js",
        "order!http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.12/jquery-ui.min.js",
        "order!http://ajax.cdnjs.com/ajax/libs/underscore.js/1.1.6/underscore-min.js",
        "order!http://ajax.cdnjs.com/ajax/libs/backbone.js/0.3.3/backbone-min.js"

    ], 
    function (require) {
        require(["src/app"], function (app) {
            app.start();
        });
    }
);

This assumes you have the order plugin in the /scripts/order.js location.

来源：https://stackoverflow.com/questions/6135259/requirejs-order-does-not-work-with-priority-config-and-cdn-dependencies

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