More updates to follow spec

Author: slightlytyler

src/Request.js

@@ -46,7 +46,7 @@ class Request {
         this.signal = request.signal;
         this.headers = new Headers(options.headers ?? request.headers);
 
-        if (!options.body && request._body._bodyInit) {
+        if (options.body === undefined && request._body._bodyInit) {
             this._body = new Body(request._body._bodyInit);
             request._body.bodyUsed = true;
         }
@@ -85,7 +85,14 @@ class Request {
     }
 
     clone() {
-        return new Request(this, { body: this._body._bodyInit });
+        if (this.bodyUsed) {
+            throw new TypeError("Already read");
+        }
+
+        const newRequest = new Request(this, { body: null });
+        newRequest._body = this._body.clone();
+
+        return newRequest;
     }
 
     blob() {

src/Response.js

@@ -21,13 +21,18 @@ class Response {
     }
 
     clone() {
+        if (this.bodyUsed) {
+            throw new TypeError("Already read");
+        }
+
         const newResponse = new Response(null, {
             status: this.status,
             statusText: this.statusText,
             headers: new Headers(this.headers),
             url: this.url,
         });
         newResponse._body = this._body.clone();
+
         return newResponse;
     }
 

test/index.js

@@ -553,7 +553,7 @@ test("request", (t) => {
         t.isNot(clone.headers, req.headers);
         t.notOk(req.bodyUsed);
 
-        const bodies = await Promise.all([clone.text(), req.clone().text()]);
+        const bodies = await Promise.all([clone.text(), req.text()]);
 
         t.eq(bodies, ["I work out", "I work out"]);
     });