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In our e-commerce site we have developed multiple portals. On the catalog page when some one click on the Product detail , Its open another pop up another detail window to show details of product. This detail page also have the Add to Cart button. Which is working perfectly fine except on one portal.
All the portals are sharing the same functionality. But on one portal when we try to click add to cart button, I doesn't add product to cart. While debugging the code and checking in database, we came to know that only on this portal, the detail window is creating another CartID and don't add the product to original cart.
This functionality has been working on all other portal and we added the other portal with same settings.
The only difference is all other portal are using http:// but this portal is using https:// . Anyhow all the portal are using https: // when a user come on online store.
We will appriciate if anyone Can give us some clue what would be the possible reason.