From 2bed431dc4811a70e370945d055f79162615274b Mon Sep 17 00:00:00 2001
From: Dave Cheney
Date: Thu, 10 Jul 2014 18:18:01 +1000
Subject: always ensure the file extension maps to something that is registered
 with the browser

---
 browser.go | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/browser.go b/browser.go
index 9eb610f..cfc9da7 100644
--- a/browser.go
+++ b/browser.go
@@ -35,7 +35,12 @@ func OpenReader(r io.Reader) error {
 	if err := f.Close(); err != nil {
 		return fmt.Errorf("browser: caching temporary file failed: %v", err)
 	}
-	return OpenFile(f.Name())
+	oldname := f.Name()
+	newname := oldname + ".html"
+	if err := os.Rename(oldname, newname); err != nil {
+		return fmt.Errorf("browser: renaming temporary file failed: %v", err)
+	}
+	return OpenFile(newname)
 }
 
 // OpenURL opens a new browser window pointing to url.
-- 
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