Blockshop - Expired popup modal continuously reopens
If you are using versions of the Blockshop theme between 2.4 and 2.5, we recommend applying the fix described below. Versions starting from 2.5.1 do not contain this bug.
This issue occurs in all browsers when the expire date set in the Popup settings has expired. The popup will open as expected on the following page load, but then fails to set a new expires date, causing the popup to constantly reopen on successive page loads.
To apply the fix, open your template editor as described here: http://docs.shopify.com/manual/configuration/store-customization#template-editor
If you make any mistakes during this process, you can always revert your code as described here: http://docs.shopify.com/manual/configuration/store-customization#backup-theme
Open the theme.liquid file, copy this code and paste it just above the closing </body> tag (2nd last line).