diff --git a/lib/dataconnection.ts b/lib/dataconnection.ts
index ab58d6c..dfbf3b2 100644
--- a/lib/dataconnection.ts
+++ b/lib/dataconnection.ts
@@ -56,7 +56,7 @@ export class DataConnection extends BaseConnection {
       this.options.connectionId || DataConnection.ID_PREFIX + util.randomToken();
 
     this.label = this.options.label || this.connectionId;
-    this.serialization = this.options.serialization || SerializationType.Binary;
+    this.serialization = this.options.serialization || SerializationType.JSON;
     this.reliable = !!this.options.reliable;
 
     if (this.options._payload) {
diff --git a/lib/exports.ts b/lib/exports.ts
index 5772d02..07fc457 100644
--- a/lib/exports.ts
+++ b/lib/exports.ts
@@ -8,6 +8,3 @@ export const peerjs = {
 
 export default Peer;
 
-(<any>window).peerjs = peerjs;
-/** @deprecated Should use peerjs namespace */
-(<any>window).Peer = Peer;
diff --git a/lib/peer.ts b/lib/peer.ts
index 66a3412..78ac6cf 100644
--- a/lib/peer.ts
+++ b/lib/peer.ts
@@ -111,11 +111,6 @@ export class Peer extends EventEmitter {
     };
     this._options = options;
 
-    // Detect relative URL host.
-    if (this._options.host === "/") {
-      this._options.host = window.location.hostname;
-    }
-
     // Set path correctly.
     if (this._options.path) {
       if (this._options.path[0] !== "/") {
diff --git a/lib/supports.ts b/lib/supports.ts
index 1801188..8bb163e 100644
--- a/lib/supports.ts
+++ b/lib/supports.ts
@@ -1,5 +1,3 @@
-import { webRTCAdapter } from './adapter';
-
 export const Supports = new class {
   readonly isIOS = ['iPad', 'iPhone', 'iPod'].includes(navigator.platform);
   readonly supportedBrowsers = ['firefox', 'chrome', 'safari'];
@@ -28,36 +26,15 @@ export const Supports = new class {
   }
 
   getBrowser(): string {
-    return webRTCAdapter.browserDetails.browser;
+    return 'chrome';
   }
 
   getVersion(): number {
-    return webRTCAdapter.browserDetails.version || 0;
+    return this.minChromeVersion;
   }
 
   isUnifiedPlanSupported(): boolean {
-    const browser = this.getBrowser();
-    const version = webRTCAdapter.browserDetails.version || 0;
-
-    if (browser === 'chrome' && version < 72) return false;
-    if (browser === 'firefox' && version >= 59) return true;
-    if (!window.RTCRtpTransceiver || !('currentDirection' in RTCRtpTransceiver.prototype)) return false;
-
-    let tempPc: RTCPeerConnection;
-    let supported = false;
-
-    try {
-      tempPc = new RTCPeerConnection();
-      tempPc.addTransceiver('audio');
-      supported = true;
-    } catch (e) { }
-    finally {
-      if (tempPc) {
-        tempPc.close();
-      }
-    }
-
-    return supported;
+    return false;
   }
 
   toString(): string {