diff --git a/.gitignore b/.gitignore
index 651e21f4..2a8d7374 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,4 +8,5 @@ issue-*/
 internalcode-*/
 /_examples/feature-*/
 _examples/**/uploads/*
+_issues/**
 .DS_STORE
diff --git a/context/context.go b/context/context.go
index 28fa9ae8..535da6d4 100644
--- a/context/context.go
+++ b/context/context.go
@@ -4727,10 +4727,6 @@ func (ctx *Context) ServeContentWithRate(content io.ReadSeeker, filename string,
 		}
 	}
 
-	if ctx.GetContentType() == "" {
-		ctx.ContentType(filename)
-	}
-
 	http.ServeContent(ctx.writer, ctx.request, filename, modtime, content)
 }