[fix] Save the value of the compress flag

Fixes #983

lib/Sender.js

@@ -220,7 +220,8 @@ class Sender {
     if (options.fin) this.firstFragment = true;
 
     if (this.perMessageDeflate) {
-      this.enqueue([this.sendCompressed, data, {
+      this.enqueue([this.dispatch, data, {
+        compress: this.compress,
         mask: options.mask,
         fin: options.fin,
         readOnly,
@@ -239,21 +240,21 @@ class Sender {
   }
 
   /**
-   * Compresses, frames and sends a data message.
+   * Dispatches a data message.
    *
    * @param {Buffer} data The message to send
    * @param {Object} options Options object
    * @param {Number} options.opcode The opcode
    * @param {Boolean} options.readOnly Specifies whether `data` can be modified
    * @param {Boolean} options.fin Specifies whether or not to set the FIN bit
+   * @param {Boolean} options.compress Specifies whether or not to compress `data`
    * @param {Boolean} options.mask Specifies whether or not to mask `data`
    * @param {Boolean} options.rsv1 Specifies whether or not to set the RSV1 bit
    * @param {Function} cb Callback
    * @private
    */
-  sendCompressed (data, options, cb) {
-    if (!this.compress) {
-      options.rsv1 = false;
+  dispatch (data, options, cb) {
+    if (!options.compress) {
       this.frameAndSend(data, options, cb);
       this.continue();
       return;