diff --git a/CHANGELOG b/CHANGELOG
index 41a86dd..95b2919 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,7 @@
+28 July: AnyProxy 3.7.1:
+
+    * fix a bug about deflate compression
+
 20 July: AnyProxy 3.7.0:
 
     * add a map-local panel on web ui, now you can easily map some request to your local files
diff --git a/lib/requestHandler.js b/lib/requestHandler.js
index e067dfa..ded7b22 100644
--- a/lib/requestHandler.js
+++ b/lib/requestHandler.js
@@ -121,6 +121,9 @@ function userRequestHandler(req,userRes){
 
         options = userRule.replaceRequestOption(req,options) || options;
         options.rejectUnauthorized = false;
+        try{
+            delete options.headers['accept-encoding']; //avoid gzipped response
+        }catch(e){}
 
         //update quest data
         reqData = userRule.replaceRequestData(req,reqData) || reqData;
@@ -138,8 +141,11 @@ function userRequestHandler(req,userRes){
             resHeader = util.lower_keys(resHeader);
 
             // remove gzip related header, and ungzip the content
+            // note there are other compression types like deflate
             var ifServerGzipped =  /gzip/i.test(resHeader['content-encoding']);
-            delete resHeader['content-encoding'];
+            if(ifServerGzipped){
+                delete resHeader['content-encoding'];
+            }
             delete resHeader['content-length'];
 
             userRes.writeHead(statusCode, resHeader);
diff --git a/package.json b/package.json
index 40eeea1..820db38 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "anyproxy",
-  "version": "3.7.0",
+  "version": "3.7.1",
   "description": "A fully configurable proxy in NodeJS, which can handle HTTPS requests perfectly.",
   "main": "proxy.js",
   "bin": {