When adding a product to shopping cart, it is not added to mini cart, but it is in /checkout/cart/

[jaimestuardo]

1. Magento 2.1.0
2. PHP 5.6.23

Steps to reproduce

1. Load the catalog in frontend and add a product to shopping cart. No product are actually added to minicart
2. If loading /checkout/cart/, products added are there.

Expected result

1. To increase number in mini cart and when click on it, shopping cart layer should be displayed

Actual result

1. Nothing displayed in mini cart and when clicked on it, a blank layer is shown

When inspecting JavaScript in Google Chrome developer tools, I found this when I load the catalog:

Uncaught TypeError: Unable to process binding "css: function (){return { empty:cart().summary_count == 0} }" Message: cart is not a function

in knockout.js.

[duhon]

@jaimestuardo Thanks for reporting.
Unfortunately, I was not able to reproduce the issue you described.
Try to reproduce in incognito mode for your browser. If that doesn't help, please provide more detail steps to reproduce the bug. Also, it can be helpful if you describe settings of your Magento instance: was it the fresh install or upgrade from the previous version? Do you have many store views? Maybe some other settings.

[jaimestuardo]

Hello,

problem started happening after last update. The problem that existed before was that the cart items indicator always was present in mini cart even when no items are in it. After upgrade to 2.1.0, this new problem happened.

I have only 1 store view.

This problem happens when trying to add a product to cart in both logged in or not logged in.

If you need to see the problem in action, just load: http://qa2016.depasa.cl/productos.html

After loaging that page, this JavaScript error is shown in console_

I don't know why that error is produced now, because other times, a JavaScript error concerning cart were shown.

[jaimestuardo]

Any solution?

[sylvainraye]

I confirm the bug. Check the screenshot. version 2.1 of Magento. Additionally, the successful added product to cart message stay stuck on all pages.

All cache are active, except the full page cache.

However after i have visited the checkout/cart page, the mini cart works better

[andimov]

@jaimestuardo @diglin
Could you please provide more details about Magento installation and environment?
Was it upgrade or clean install, do you use Varnish, etc.

[jaimestuardo]

I was using Magento 2.0.x and it had another problems that I needed to have fixed. So, when 2.1.0 version was released, I have upgraded. Most problems were solved, however, this another problem started happening. This is crucial to be solved as soon as possible.

[sylvainraye]

Same as @jaimestuardo except that issues are still on 2.1.0. No varnish. PHP 7 installed on a vagrant VM

[jaimestuardo]

Any update on this?

[jaimestuardo]

Finally I could know what was happening. The problem was strange, however.

I have a custom template. That custom template had minicart.phtml in its design folder. Well, the only difference between this phtml and the default phtml is that I had added a new style class in the outer div.

To test I have deleted that new class from the div and the page still did not work. So, finally, I deleted the minicart.phtml from my custom template, and magically it started working.

Therefore, the solution was to change my custom css file to change the minicart style, instead of adding a new class and customizing the minicart.phtml template.

Why was this? I don't know, but it did work, at least.

Thanks
Jaime