Building a blank page with a successful AJAX loading prototype

I'm currently working on a Magento project and encountering an issue while attempting to load more products with the click of a button.

Although I can see the products loading, it ultimately leads to a blank page afterwards.

I am unsure of what could be causing this unexpected behavior.

Here is the code snippet that I am using:


    var loadMoreProducts = Class.create({
        initialize: function (list, href, pattern) {
            var self = this;

            this.list = list;
            this.list.insert({ after : '<div class="more"><span id="more_button" class="more-button">More</span></div>'});
            this.href = href.readAttribute('href');
            this.button = $('more_button');
            this.holder = new Element('div', { 'class': 'response-holder' });

            this.button.observe('click', function () {
                if ( !self.button.hasClassName('loading') ) {
                    new Ajax.Request(self.href, {
                        onCreate: function () {
                            self.button.addClassName('loading');
                        },
                        onSuccess: function(response) {
                            if (200 == response.status) {
                                   self.holder.update(response.responseText).select(pattern).each(function(elem) {
                                   self.list.insert({ bottom : elem });
                                }),

                                self.href = self.holder.select('.next-page')[0].readAttribute('href');
                                self.button.removeClassName('loading');

                                if ( !self.href ) {
                                    self.button.up().remove();
                                }

                            }

                        }
                    });
                }
            });
        }
    });

If anyone has insights or solutions to offer, I would greatly appreciate it!

Thank you in advance.

Answer №1

I encountered a similar issue with my Magento iPhone original theme, which was caused by code injection - particularly "script" tags coming from Google Analytics, Clicktale, and other sources.

To resolve the problem, I took the following steps to manipulate the ajax response and change the opening "script" tag using HTML entities:

After line 117 (approximately in iphone.js)

if (200 == response.status) {
that.holder.update(response.responseText).select(pattern).each(function(elem) {

Replace it with this:

str = response.responseText;                                
str  = str.replace(/<script/gi, '&lt;script');

that.holder.update(str).select(pattern).each(function(elem) {

Answer №2

Perhaps consider revising your code and implementing this instead of that. Your current code is quite challenging to decipher.

I don't see a necessity for utilizing the onCreate event within the Ajax Request, as it's typically reserved for Ajax Responders according to the specification outlined at:

Instead, you could apply this class name when entering into !that.button.hasClassName('loading') ...

if ( !that.button.hasClassName('loading') ) {
   that.button.addClassName('loading');
    new Ajax.Request(that.href, {
....

There are various elements to consider, such as your CSS, Magento, as well as surrounding parent HTML elements, making it complex to provide precise guidance. Have you undertaken any troubleshooting steps thus far?

Karl..

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