fix: Check if XMLHttpRequest exists before using it

Whoaa512 · kamilogorek · commit 9bd9ca92d0a1 · 2018-03-20T11:12:13.000+01:00
Fixes loading raven in a JS dom environment
diff --git a/src/raven.js b/src/raven.js
@@ -1244,7 +1244,7 @@ Raven.prototype = {
     }
 
     if (autoBreadcrumbs.xhr && 'XMLHttpRequest' in _window) {
-      var xhrproto = XMLHttpRequest.prototype;
+      var xhrproto = _window.XMLHttpRequest && _window.XMLHttpRequest.prototype;
       fill(
         xhrproto,
         'open',

Original file line number	Diff line number	Diff line change
`@@ -1244,7 +1244,7 @@ Raven.prototype = {`
`1244`	`1244`	`}`
`1245`	`1245`
`1246`	`1246`	`if (autoBreadcrumbs.xhr && 'XMLHttpRequest' in _window) {`
`1247`		`- var xhrproto = XMLHttpRequest.prototype;`
	`1247`	`+ var xhrproto = _window.XMLHttpRequest && _window.XMLHttpRequest.prototype;`
`1248`	`1248`	`fill(`
`1249`	`1249`	`xhrproto,`
`1250`	`1250`	`'open',`