Merge branch 'bugfix/history-push-state-iframe' into 'master'

bugfix: catch history pushState errors

Closes startinblox/components/sib-editor#4

See merge request !29

src/sib-router.js

@@ -88,7 +88,9 @@ export default class SIBRouter extends HTMLElement {
   updateURL(route, id) {
     const path = route.getPath(this.prefix, route.name, route.hasAttribute('use-id') ? id : '', route.name == this.defaultRoute);
     const prefix = this.useHash ? '#' : '/';
-    history.pushState({}, route.name, prefix + path); // update current URL
+    try {
+      history.pushState({}, route.name, prefix + path); // update current URL
+    } catch (e) { console.warn('"history.pushState" is not useable in this context.') }
   }
 }