common: fix potential panic case

897888fd · Mitchell Hashimoto · 9c6d0dfc · 897888fd
Commit 897888fd authored Jun 21, 2015 by Mitchell Hashimoto
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common/download.go common/download.go +1 -1

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--- a/common/download.go
+++ b/common/download.go
@@ -118,7 +118,7 @@ func (d *DownloadClient) Get() (string, error) {
 		finalPath = url.Path

 		// Remove forward slash on absolute Windows file URLs before processing
-		if runtime.GOOS == "windows" && finalPath[0] == '/' {
+		if runtime.GOOS == "windows" && len(finalPath) > 0 && finalPath[0] == '/' {
 			finalPath = finalPath[1:len(finalPath)]
 		}
 	} else {