URGENT: Prices are not displayed — issue with Price Calculations

Hi Nicolas,

After updating to HikaShop 6.4.0, I’m facing a critical issue: on some product pages the price is not displayed on screen when the price depends on HikaShop – Price Calculations (price computed from custom fields such as width/height/quantity/shape).

What happens

The calculation is triggered (an XHR request returns HTTP 200), but the price never renders.

The browser console shows:

Uncaught TypeError: Cannot read properties of null (reading 'price')

Triggered inside the xhr.onreadystatechange callback (hikashop.js).

Technical evidence (Network/XHR)

In Network → XHR there is a request named calculate returning:

Response: No product id

And in Payload / Form data, only these parameters are sent:

{"cart_type":"cart","add":"1","ctrl":"product","task":"updatecart","return_url":"aHR0cHM6Ly93d3cuaGVybWFub3NnYWxpYW5vLmVzL2NvbXByYXIvZXRpcXVldGFzLXBlcnNvbmFsaXphZGFz"}

As you can see, product_id is not being sent.

DOM evidence

In Elements, I can see:

<span id="hikashop_product_id_main" class="hikashop_product_id_main"></span>

This span is empty (no ID inside), so the AJAX/calculation flow cannot retrieve the product_id and the request ends with “No product id”. Then the JS tries to read .price and crashes.

Important notes

This does not affect all products: it happens only on products where the price is calculated using Price Calculations with custom fields.

Products with a “normal” price (no calculation) are not affected.

Example URL

www.hermanosgaliano.es/comprar/etiquetas-personalizadas

Request

Could you please confirm if this is a regression in 6.4.0 and provide a patch?
It looks like the issue is that product_id is not injected into the DOM (or is not being read properly) when building the calculate/updatecart request.

Thank you in advance — this is urgent because it directly impacts conversions.

Best regards,
José Ángel
Hermanos Galiano

Thanks Nicolas.
It works fine.
Best regards.

Hi Nicolas.
This had been solved, but in some of the new versions something has changed and now the prices are not shown in the articles that refer to the plugin's calculations Price Calculations

www.hermanosgaliano.es/comprar/etiquetas-personalizadas

Nicolas.
It's true and I apologize for that.
I was testing on another computer that had not removed the cookies/cache from the url.
The only thing left pending is not being able to upload files.