Fix anacronw#126: Correct detecting content-type of svgs

JustDoItSascha · Nov 13, 2019 · 9e4673b · 9e4673b
1 parent 168eb90
commit 9e4673b
Showing 1 changed file with 9 additions and 4 deletions.
diff --git a/index.js b/index.js
@@ -27,21 +27,26 @@ function defaultKey (req, file, cb) {
 }
 
 function autoContentType (req, file, cb) {
-  file.stream.once('data', function (firstChunk) {
-    var type = fileType(firstChunk)
+  var data = ''
+  file.stream.on('data', function(chunk) {
+    data += chunk.toString();
+  })
+
+  file.stream.once('end', function () {
+    var type = fileType(data)
     var mime
 
     if (type) {
       mime = type.mime
-    } else if (isSvg(firstChunk)) {
+    } else if (isSvg(data)) {
       mime = 'image/svg+xml'
     } else {
       mime = 'application/octet-stream'
     }
 
     var outStream = new stream.PassThrough()
 
-    outStream.write(firstChunk)
+    outStream.write(data)
     file.stream.pipe(outStream)
 
     cb(null, mime, outStream)