Category Archives: JavaScript

postMessage in JavaScript

The big problem with iframes is communication between the iframe and it’s parent. When the origin of an iframe is the same as parent there’s no problem. But when the domains are different it was impossible to change anything in iframe from parent for instance. postMessage solve this problem almost completely. Two ways communication with […]

matchMedia in JavaScript

Let’s dig in into JavaScript and matchMedia usages. For those who doesn’t know what matchMedia is, let me explain. You probably know what Media Queries in CSS are. You can match the max-width for instance to check if You are on mobile device etc. But sometimes CSS is not enough and You have to execute […]