window.postMessage is a method for safely enabling cross-origin communication. Normally, scripts on different pages are only allowed to access each other if and only if the pages which executed them are at locations with the same protocol (usually both http), port number (80 being the default for http), and host (modulo document.domain being set by both pages to the same value). window.postMessage provides a controlled mechanism to circumvent this restriction in a way which is secure when properly used.
Cross-Origin Resource Sharing (CORS) is a specification that enables a truly open access across domain-boundaries. With this site we want to support the adoption of CORS
I am confident that with my high interest levels in the subject, I will be able to significantly contribute to the ongoing research at the Institute of Optics. I hereby request you to consider me for admission into the M.S. program and I look forward to being associated with The University of Rochester. I will indeed deem it a special privilege to be a part of it.