Welcome to the Q&A Forum

Haven't found a feasible solution yet,. the code of the popup is not available to edit so the inserting manual canonical tag is not possible. Anybody has something else to offer?

Okay I'll try and see if I can do that. It's a shopify based website so I don't have as much freedom of tweaking stuff. The pop-up came in-built with the theme. Will try and see if I can include the canonical link in the pop-up source code.

You mean the never alone one? 
As I said, that one is not actually a webpage, it's just a URL which triggers the popup. 
If you check the URL without the parameter "view=quick" , you'll find a canonical tag in there.

I've added the screenshots for HTML of our home page and that product page.

DeDdg oXuhG

We've already added the canonical tags in the header section. Do you mean we have to this to each and every individual product page?
This is the script we've added :

Hi,

Need some help. 
So this is my website _https://www.memeraki.com/  _
If you hover over any of the products, there's a quick view option..that opens up a popup window of that product
That popup is triggered by this URL.  _https://www.memeraki.com/products/never-alone?view=quick  _
In the URL you can see the parameters "view=quick" which is infact responsible for the pop-up. The problem is that the google and even your Moz crawler is picking up this URL as a separate webpage, hence, resulting in crawl issues, like missing tags.
I've already used the webmaster tools to block the "view" parameter URLs in my website from indexing but it's not fixing the issue
Can someone please provide some insights as to how I can fix this?