Hi All,
I am facing one issue, when i am trying to placed order sometime order placed and sometime spinning loader is running on the site and on right hand side this message "Not to close the browser until the order has processed." and it continue running. I am using Magento 2.2.6 and for checkout i used one step checkout. Please let me know if anyone face this kind of same issue or anyone have knowledge about this issue.
Thanks in advance,
Hitesh Joshi
Please do check your server log or magento log for error, it may help you to get the actual problem.
Before click on place order button in checkout page please follow the error log by using this command
tail -f var/log/* if you not able to find any error in magento error log, then please do check your server error log.
Please Kudos if it's help