fix HEAD requests

[kesla]

The http responses were not ended properly

[kesla]

@mikeal Ping! This seem to have been forgotten about :)

[bahamas10]

I just ended up implementing this on my own, to cover the same issue. Making a HEAD request to a static asset without if-none-match, it just hangs.

I made a second change, not sure if it is appropriate or not

@@ -108,7 +108,9 @@ function File (options) {
           return
         }

-        if (self.src.method !== 'HEAD') {
+        if (self.src.method === 'HEAD') {
+          self.dest.end()
+        } else {
           fs.createReadStream(self.path).pipe(self.dest)
         }
         return
@@ -137,7 +139,11 @@ function File (options) {
         self.dest.setHeader('etag', self.etag)
         self.dest.setHeader('last-modified', self.lastmodified)
         self.dest.setHeader('content-length', stats.size)
-        fs.createReadStream(self.path).pipe(self.dest)
+        if (self.src.method === 'HEAD') {
+          self.dest.end()
+        } else {
+          fs.createReadStream(self.path).pipe(self.dest)
+        }
         return
       }

[bahamas10]

@mikeal ping on this again. not trying to annoy, but i'm working on a new project, and filed is 99% perfect for the job, it's just lacking proper support for HEAD requests. i'd love to see this get implemented.

[mikeal]

can we get @bahamas10's additions to this pull request?