thx >>5,>>6

hotfix.patch

diff --git a/chaika/modules/server/thread.js b/chaika/modules/server/thread.js
index 97dd198..e5b55cd 100644
--- a/chaika/modules/server/thread.js
+++ b/chaika/modules/server/thread.js
@@ -843,10 +843,14 @@ Thread2ch.prototype = {
         // 差分GET
         if(this.thread.datFile.exists() && this.thread.lastModified){
             let lastModified = this.thread.lastModified;
-            let range = this.thread.datFile.fileSize - 1;  //あぼーんされたか調べるために1byte余計に取得する
-            this.httpChannel.setRequestHeader("Accept-Encoding", "", false);
             this.httpChannel.setRequestHeader("If-Modified-Since", lastModified, false);
-            this.httpChannel.setRequestHeader("Range", "bytes=" + range + "-", false);
+            if(this.httpChannel.URI.host.match(/2ch\.net$/)){
+                this.httpChannel.setRequestHeader("Accept-Encoding", "gzip", false);
+            }else{
+                let range = this.thread.datFile.fileSize - 1;  //あぼーんされたか調べるために1byte余計に取得する
+                this.httpChannel.setRequestHeader("Accept-Encoding", "", false);
+                this.httpChannel.setRequestHeader("Range", "bytes=" + range + "-", false);
+            }
             this._aboneChecked = false;
         }else{
             this.httpChannel.setRequestHeader("Accept-Encoding", "gzip", false);