Variant prices or add to cart not working

Technical Q&A
,
1

On my default product page the variants won’t change price when selected. Also the add to cart button does not work either unless a page refresh occurs.

2

image
image1542×1178 316 KB

when switching the variants there is an exception occurs . Guess this should be the cause .

3

Hello @OzWargaming ,

There is JS conflict in your store.
I suggest revert the changes you did recently and the issue will fixed automatically.

But still if you need help feel free to drop a message and I’l help you.

Regards
Guleria

4

I’m not sure what any of this means tbh

5

I have messaged you. Thankyou

6

Yes reverting to last changes should fix the issue, have recently updated the theme?

7

Here, the theme JS code expects every variant to have a featured_image.

If it’s not assigned, the code will fail and prevent the rest of the function (lines 981-…) to update price:

Screenshot 2026-05-09 at 1.19.15 PM
Screenshot 2026-05-09 at 1.19.15 PM935×398 73.6 KB

Change line 977 to this:

if (this.currentVariant?.featured_image?.src)
    $('.stickCtImg').attr('src', this.currentVariant.featured_image.src+'&width=100');

As others remarked, there is more problematic JS code, but not really affecting this particular issue.

10

amazing thankyou that worked perfectly