fix image ssr

cl199793 · cl199793 · commit 031885f67f1d · 2019-07-26T10:54:01.000+08:00
diff --git a/packages/image/src/image-viewer.vue b/packages/image/src/image-viewer.vue
@@ -66,7 +66,7 @@ const Mode = {
   }
 };
 
-const isFirefox = !!window.navigator.userAgent.match(/firefox/i);
+const isFirefox = typeof window !== 'undefined' && !!window.navigator.userAgent.match(/firefox/i);
 const mousewheelEventName = isFirefox ? 'DOMMouseScroll' : 'mousewheel';
 
 export default {

Original file line number	Diff line number	Diff line change
`@@ -66,7 +66,7 @@ const Mode = {`
`66`	`66`	`}`
`67`	`67`	`};`
`68`	`68`
`69`		`-const isFirefox = !!window.navigator.userAgent.match(/firefox/i);`
	`69`	`+const isFirefox = typeof window !== 'undefined' && !!window.navigator.userAgent.match(/firefox/i);`
`70`	`70`	`const mousewheelEventName = isFirefox ? 'DOMMouseScroll' : 'mousewheel';`
`71`	`71`
`72`	`72`	`export default {`