forced UTF-8 charset for text assets

lib/mincer/server.js

@@ -113,6 +113,17 @@ function is_compressable(asset) {
 }
 
 
+// Returns whenever an asset is text or not
+var TEXT_MIME_RE = new RegExp([
+  '^text/',
+  '/json$',
+  '/javascript$'
+].join('|'));
+function is_text(asset) {
+  return TEXT_MIME_RE.test(asset.contentType);
+}
+
+
 // Tells whenever browser accepts gzip at all
 function is_gzip_accepted(req) {
   var accept = req.headers['accept-encoding'] || '';
@@ -381,9 +392,9 @@ Server.prototype.handle = function handle(req, res) {
 
     //
     // Set content type and length headers
+    // Force charset for text assets, to avoid problems with JS loaders
     //
-
-    res.setHeader('Content-Type',   asset.contentType);
+    res.setHeader('Content-Type', asset.contentType + (is_text(asset) ? '; charset=UTF-8' : ''));
     res.setHeader('Content-Length', length || asset.length);
 
     res.statusCode = 200;