**I'm submitting a bug report** **I'm submitting a feature request** * **Library Version:** major.minor.patch-pre **Please tell us about your environment:** * **Operating System:** OSX 10.x|Linux (distro)|Windows [7|8|8.1|10] * **Node Version:** 6.2.0 * **NPM Version:** 3.8.9 * **JSPM OR Webpack AND Version** JSPM 0.16.32 | webpack 2.1.0-beta.17 * **Browser:** all | Chrome XX | Firefox XX | Edge XX | IE XX | Safari XX | Mobile Chrome XX | Android X.X Web Browser | iOS XX Safari | iOS XX UIWebView | iOS XX WKWebView * **Language:** all | TypeScript X.X | ESNext **Current behavior:** **Expected/desired behavior:** * **What is the expected behavior?** * **What is the motivation / use case for changing the behavior?**