From 6600cf3a54a468e6419e735e627721a9b28e8ffd Mon Sep 17 00:00:00 2001
From: Michael Stramel <m.stramel89@gmail.com>
Date: Wed, 3 Jun 2020 13:13:48 -0500
Subject: [PATCH] Add compressible check

---
 package-lock.json   | 14 ++++++++++++++
 package.json        |  2 ++
 src/commands/dev.ts |  3 ++-
 3 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/package-lock.json b/package-lock.json
index d5f6bf8979..86450ad5c1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2159,6 +2159,12 @@
       "resolved": "https://registry.npmjs.org/@types/color-name/-/color-name-1.1.1.tgz",
       "integrity": "sha512-rr+OQyAjxze7GgWrSaJwydHStIhHq2lvY3BOC2Mj7KnzI7XK0Uw1TOOdI9lDoajEbSWLiYgoo4f1R51erQfhPQ=="
     },
+    "@types/compressible": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/@types/compressible/-/compressible-2.0.0.tgz",
+      "integrity": "sha512-ioFCyNkga3vWcvLowx1qO+/4D0jw8JYpjoIC2b6NzQ7zk7A03Sw/KEsDuRtKqtAo2/GOhbyWQYuPVsg8h/ACcA==",
+      "dev": true
+    },
     "@types/es-module-lexer": {
       "version": "0.3.0",
       "resolved": "https://registry.npmjs.org/@types/es-module-lexer/-/es-module-lexer-0.3.0.tgz",
@@ -3884,6 +3890,14 @@
       "integrity": "sha1-ZF/ErfWLcrZJ1crmUTVhnbJv8UM=",
       "dev": true
     },
+    "compressible": {
+      "version": "2.0.18",
+      "resolved": "https://registry.npmjs.org/compressible/-/compressible-2.0.18.tgz",
+      "integrity": "sha512-AF3r7P5dWxL8MxyITRMlORQNaOA2IkAFaTr4k7BUumjPtRpGDTZpl0Pb1XCO6JeDCBdp126Cgs9sMxqSjgYyRg==",
+      "requires": {
+        "mime-db": ">= 1.43.0 < 2"
+      }
+    },
     "concat-map": {
       "version": "0.0.1",
       "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
diff --git a/package.json b/package.json
index 706278a25f..45d1bb8cfc 100644
--- a/package.json
+++ b/package.json
@@ -59,6 +59,7 @@
     "cachedir": "^2.3.0",
     "chalk": "^4.0.0",
     "chokidar": "^3.4.0",
+    "compressible": "^2.0.18",
     "cosmiconfig": "^6.0.0",
     "css-modules-loader-core": "^1.1.0",
     "deepmerge": "^4.2.2",
@@ -100,6 +101,7 @@
     "@pika/plugin-ts-standard-pkg": "^0.9.1",
     "@types/babel__traverse": "^7.0.7",
     "@types/cacache": "^12.0.1",
+    "@types/compressible": "^2.0.0",
     "@types/es-module-lexer": "^0.3.0",
     "@types/http-proxy": "^1.17.4",
     "@types/mkdirp": "^1.0.0",
diff --git a/src/commands/dev.ts b/src/commands/dev.ts
index cbe717bb71..78bf81f184 100644
--- a/src/commands/dev.ts
+++ b/src/commands/dev.ts
@@ -27,6 +27,7 @@
 import cacache from 'cacache';
 import chalk from 'chalk';
 import chokidar from 'chokidar';
+import isCompressible from 'compressible'
 import detectPort from 'detect-port';
 import etag from 'etag';
 import {EventEmitter} from 'events';
@@ -117,7 +118,7 @@ const sendFile = (
   }
 
   let acceptEncoding = (req.headers['accept-encoding'] as string) || ''
-  if (req.headers["cache-control"]?.includes('no-transform') || ['HEAD', 'OPTIONS'].includes(req.method!)) {
+  if (req.headers["cache-control"]?.includes('no-transform') || ['HEAD', 'OPTIONS'].includes(req.method!) || !isCompressible(mime.contentType(ext))) {
     acceptEncoding = ''
   }