diff --git a/.dist/localuser.js b/.dist/localuser.js
index c37f3a5..7eeae26 100644
--- a/.dist/localuser.js
+++ b/.dist/localuser.js
@@ -130,10 +130,16 @@ class Localuser {
                 }
             }));
         });
-        const ds = new DecompressionStream("deflate");
-        const w = ds.writable.getWriter();
-        const r = ds.readable.getReader();
-        let arr = new Uint8Array();
+        let ds;
+        let w;
+        let r;
+        let arr;
+        if (DecompressionStream) {
+            ds = new DecompressionStream("deflate");
+            w = ds.writable.getWriter();
+            r = ds.readable.getReader();
+            arr = new Uint8Array();
+        }
         let build = "";
         this.ws.addEventListener('message', async (event) => {
             let temp;
diff --git a/webpage/localuser.ts b/webpage/localuser.ts
index d32221a..0577884 100644
--- a/webpage/localuser.ts
+++ b/webpage/localuser.ts
@@ -136,10 +136,18 @@ class Localuser{
             }
         }))
         });
-        const ds = new DecompressionStream("deflate");
-        const w= ds.writable.getWriter();
-        const r=ds.readable.getReader();
-        let arr=new Uint8Array();
+        let ds:DecompressionStream;
+        let w:WritableStreamDefaultWriter;
+        let r:ReadableStreamDefaultReader;
+        let arr:Uint8Array;
+        if(DecompressionStream){
+            ds = new DecompressionStream("deflate");
+            w= ds.writable.getWriter();
+            r=ds.readable.getReader();
+            arr=new Uint8Array();
+        }
+
+
         let build="";
         this.ws.addEventListener('message', async (event) => {
             let temp:{op:number,t:string};