I got the same blank onepage checkout problem but just for logged in users ! Works fine if my customers want to check out as guest.
How can I solve this problem ? I am using the latest build of magento.
Thanks in advance,
Justine
EDIT : Once I refresh cache the checkout page works (not always) as logged in user , but it doesn’t work properly.
I attached a screenshot to this posting.
I’ve edited php.ini and restarted apache, enabled cache and nothing works.
I only have the problem with paypal standard checkout, other methods are ok however I do sometimes get the undefinied popup box on the checkout when trying to submit an order.
If you’ve tried all the steps above and your checkout page is still not working, you could also check your configuration to make sure the checkout module is enabled.
In Magento ver. 1.4.0.1 i had problem with Phoenix_CashOnDelivery extension.
You should copy Phoenix_CashOnDelivery template from default/default to base/default template folder.
I guess for some other(older) extensions this could work.
I have not made any changes to theme, but I have the same problem with v. 1.4.1.1, which I just installed this week for the first time. Also, my cart page is blank! In configuration menu I disabled onepage checkout, then the checkout link disappeared, so I enabled it again. I have looked all over the net and in all the config menu choices, but I am stumped. Any suggestions?
I figured it out. When the cache is off I get the blank page issue. It works when it’s on. Something to look into for the dev team?
Awesome!… I’m reading this post 3 years later (July, 2011) and enabling only the “Configuration Cache” in Magento Admin Panel > System > Cache Management worked perfectly for me on Magento 1.5.1.0 Absolutely Great! Thank you onyxrev!