feat: add encoding even if .br/.gz specified (#923)

* Add handling of brotli/gzip pre-compressed files

Serving pre-compressed brotli/gzip files was not working before, because a file.br.br against the pre-compressed file.br check always returned false.

* Bump version from 14.1.1 to 14.1.2

Author: azeitler

lib/core/index.js

@@ -200,9 +200,9 @@ module.exports = function createMiddleware(_dir, _options) {
         path.relative(path.join('/', baseDir), pathname)
       )
     );
-    // determine compressed forms if they were to exist
-    gzippedFile = `${file}.gz`;
-    brotliFile = `${file}.br`;
+    // determine compressed forms if they were to exist, make sure to handle pre-compressed files, i.e. files with .br/.gz extension. we will serve them "as-is"
+    gzippedFile = file.endsWith('gz') ? file : `${file}.gz`;
+    brotliFile = file.endsWith('br') ? file : `${file}.br`;
 
     Object.keys(headers).forEach((key) => {
       res.setHeader(key, headers[key]);

package.json

@@ -1,6 +1,6 @@
 {
   "name": "http-server",
-  "version": "14.1.1",
+  "version": "14.1.2",
   "description": "A simple zero-configuration command-line http server",
   "main": "./lib/http-server",
   "repository": {