javascript - 尝试使用 jQuery 将负载附加到 img 时超出最大调用堆栈大小

Question

我选择了一个简单的图像(我也尝试了 on() 和 one()):

$container.find('.thumbnail img').load(function(){
  $container.trigger('resize');
});

出于某种原因，我得到了 Uncaught RangeError: Maximum call stack size exceeded。如果重要的话，我将从 S3 实例加载这些图像。我知道它确实重定向了几次，但我认为这无关紧要。

有没有人遇到过这个或类似的事情。我觉得这不应该是一个无限循环。这也会间歇性地发生，这更令人困惑。

调整大小的东西:

publicMethod.resize = function (options) {
    if (open) {
        options = options || {};

        if (options.width) {
            settings.w = setSize(options.width, 'x') - loadedWidth - interfaceWidth;
        }
        if (options.innerWidth) {
            settings.w = setSize(options.innerWidth, 'x');
        }
        $loaded.css({width: settings.w});

        if (options.height) {
            settings.h = setSize(options.height, 'y') - loadedHeight - interfaceHeight;
        }
        if (options.innerHeight) {
            settings.h = setSize(options.innerHeight, 'y');
        }
        if (!options.innerHeight && !options.height && $loaded.find('iframe').length == 0) {
            var $child = $loaded.wrapInner("<div style='overflow:auto'></div>").children(); // temporary wrapper to get an accurate estimate of just how high the total content should be.
            settings.h = $child.height();
            $child.replaceWith($child.children()); // ditch the temporary wrapper div used in height calculation
        }
        if("scrollTop" in options) {
            settings.scrollTop = options.scrollTop;
        }
        $loaded.css({height: settings.h});

        publicMethod.position(settings.transition === "none" ? 0 : settings.speed);
    }
};

Answer 1

经过几天的调试，我终于找到了问题所在。问题是 Paul Irish 几个月前 Rails 方面的开发人员使用了一个垫片，它覆盖了内部 jQuery special.add 方法，该方法完全破坏了任何 img.load()东西。该片段看起来像这样(它实际上部署在整个网络上，但在 jQuery 1.6-1.7+ 之前不会引起问题

/*
 * Special event for image load events
 * Needed because some browsers does not trigger the event on cached images.

 * MIT License
 * Paul Irish     | @paul_irish | www.paulirish.com
 * Andree Hansson | @peolanha   | www.andreehansson.se
 * 2010.
 *
 * Usage:
 * $(images).bind('load', function (e) {
 *   // Do stuff on load
 * });
 * 
 * Note that you can bind the 'error' event on data uri images, this will trigger when
 * data uri images isn't supported.
 * 
 * Tested in:
 * FF 3+
 * IE 6-8
 * Chromium 5-6
 * Opera 9-10
 */
(function ($) {
    $.event.special.load = {
        add: function (hollaback) {
            if ( this.nodeType === 1 && this.tagName.toLowerCase() === 'img' && this.src !== '' ) {
                // Image is already complete, fire the hollaback (fixes browser issues were cached
                // images isn't triggering the load event)
                if ( this.complete || this.readyState === 4 ) {
                    hollaback.handler.apply(this);
                }

                // Check if data URI images is supported, fire 'error' event if not
                else if ( this.readyState === 'uninitialized' && this.src.indexOf('data:') === 0 ) {
                    $(this).trigger('error');
                }

                else {
                    $(this).bind('load', hollaback.handler);
                }
            }
        }
    };
}(jQuery));

因此，如果您正在处理使用 jQuery 的大型代码库，并且在尝试执行图像加载时遇到调用堆栈超出错误，则可能是在某个时候添加了此 shim。