Loads blank page on Back Button Use case

This may or may not be a problem with the plugin, not an error, but could be perceived as one. Sharing in case this helps tighten things up and reduce complaints or problems… 🙂

we have the plugin installed on https://creativeartscharter.org/donate-to-annual-fund/

Everything works fine on a submission if they go to the page just a single time.

(we are on wpengine, what follows is not the issue but might help others.)

If they come back to the same page, let’s say to donate again, the WPEngine cache will get in the way. It is necessary to contact WPEngine support and establish a page exclusion cache. (no way to do this yourself on wpengine, have to get help. This also prevents the plugin from running on all pages or something)

Where the plugin seems to have a problem

Use case where a donator gets to paypal and wants to change their donation amount/selection…

If a person chooses an amount to donate, fills out the form and hits the donate option,
Then they arrive at paypal through the plugins redirect and the paypal ipn

If they ‘change their mind’ and hit the Back button,

They will see the page. They might select a different amount and hit the donate button again….

At this point, the plugin appears to break and renders a blank page. It does not send the user back to paypal.

Would love to see this fixed… not sure how.

Maybe force the page to refresh upon a back button push (never heard of this before, maybe its possible?)

Or perform some logic to see if the donate button has been pushed once already in the session and then do something…

even a red text message warning them to refresh the page might be more helpful than white screen of temporary death! 🙂

https://wordpress.org/plugins/seamless-donations/