Hi All 

I got this Message from Salesforce when I tried to open one of my Home Component(Customize>> Home >> Home Components)
which its Type is HTML Area. Here is the messahe "This component contained unsupported elements that have been removed. Click continue editing the cleaned content".



And once I opened it, there is nothig as it's totally cleaned. So, where can I get backup code?
Is it possible to find a backup of my code in Production or in any Sandbox. 
I googled it, and found this : http://docs.releasenotes.salesforce.com/en-us/summer14/release-notes/rn_forcecom_home_page_components.htm
Bug they don't mention about the backup code.

Best regards