Need Help - Thumbnails Disapear On Browser Back & Refresh

[dirtrider118]

Hello,

 

I was wondering if someone with more knowledge my be able to help me out.

 

On the category page I click a product thumbnail and go to the products main page (product.tpl). If I press the browser back button and refresh the category page the thumbnail for the product i just viewed goes missing. (like the thumbnail attached)

 

If I clear the browser cache and revisit the category page the image has returned. But when I do above again I get the same result.

 

I have tried replacing product-list.tpl, category.tpl and product.tpl with the orignal code but i get the same result. Is there any other files i could try rolling back to original?

 

Core files have been modified and before I spend a couple hours trying to figure out what's going on possibly this problem may be more obvious to someone else.

 

Any help will be greatly appreciated!

 

 

Prestashop 1.6.1.1 - Cache is off and force compilation is on.

 

Thanks,

Tom

Edited December 15, 2015 by dirtrider118 (see edit history)

[dirtrider118]

I found the issue in case anyone else has this problem.

 

Turns out it was the blockviewed module that I modified. I had changed the blockviewed.php file to try and get access to the product price variable inside the blockviewed.tpl file.

 

I followed post#3 in the below community post which caused the issue.

https://www.prestashop.com/forums/topic/248206-products-price-in-block-viewed/

 

I ended up using post #4 and it worked perfectly! No more more missing thumbnails on refresh.