fix(WebWorker): Patch WebSockets and XMLHttpRequest in WebWorker
fix(WebWorker): Patch WebSockets and XMLHttpRequest in WebWorker

Closes #249

juliemr/zone.js,mhevery/zone.js,mhevery/zone.js,angular/zone.js,mlaval/zone.js,spinfooser/zone.js,mlaval/zone.js,mhevery/zone.js,mlaval/zone.js,richardmurri/zone.js,juliemr/zone.js,spinfooser/zone.js,angular/zone.js,spinfooser/zone.js,angular/zone.js,richardmurri/zone.js,juliemr/zone.js,richardmurri/zone.js,juliemr/zone.js,angular/zone.js,richardmurri/zone.js,mlaval/zone.js,spinfooser/zone.js,mhevery/zone.js,angular/zone.js