Cross-Origin Resource Sharing: Modern JSONP

Pulling data into the browser from multiple sources has been a challenge, courtesy of the same-origin security policy. Historically, JSONP was the only methodology for overcoming this security policy, but that changed in 2014 with the Cross-Origin Resource Sharing (CORS) spec.

Today’s talk covers the basics of the CORS process and how to test it on a local virtual machine, then walk through how to use the process to create a basic tracking application with Symfony and Angular.