Same-Origin Policy Courses
OWASP Foundation via YouTube The Timing Attacks They Are A-Changin' - Web-based and Browser-based Timing Attack Techniques
OWASP Foundation via YouTube Security Implications of Cross-Origin Resource Sharing - HTML5 and CORS Analysis
OWASP Foundation via YouTube Warning Ahead: Security Storms Brewing in JavaScript
OWASP Foundation via YouTube Surfing the Sea and Drowning in Tabs - An Introduction to Cross Site Request Forgery
YouTube AJAX Authentication and Cross-Origin Requests
Packt via Coursera