fix: support only for browser

Author: picunada

src/fetch.ts

@@ -284,31 +284,39 @@ export function createFetch(globalOptions: CreateFetchOptions = {}): $Fetch {
             let loaded = 0;
             const contentLength =
               context.response!.headers.get("content-length")!;
-            const _reader = context.response!.body!.getReader();
-            const _decoder = new TextDecoder();
-            const _chunks: string[] = [];
-
-            async function read(): Promise<string> {
-              const { done, value } = await _reader.read();
-
-              if (done) {
-                return _chunks.join("");
-              }
-
-              loaded += value.byteLength;
-
-              if (context.options.onResponseProgress) {
-                context.options.onResponseProgress(
-                  Math.round((loaded / Number.parseInt(contentLength)) * 100)
-                );
+            if (
+              "getReader" in (context.response!.body as ReadableStream) &&
+              typeof (context.response!.body as ReadableStream).getReader ===
+                "function"
+            ) {
+              const _reader = context.response!.body!.getReader();
+              const _decoder = new TextDecoder();
+              const _chunks: string[] = [];
+
+              async function read(): Promise<string> {
+                const { done, value } = await _reader.read();
+
+                if (done) {
+                  return _chunks.join("");
+                }
+
+                loaded += value.byteLength;
+
+                if (context.options.onResponseProgress) {
+                  context.options.onResponseProgress(
+                    Math.round((loaded / Number.parseInt(contentLength)) * 100)
+                  );
+                }
+
+                const chunk = _decoder.decode(value, { stream: true });
+                _chunks.push(chunk);
+                return await read(); // read the next chunk
               }
 
-              const chunk = _decoder.decode(value, { stream: true });
-              _chunks.push(chunk);
-              return await read(); // read the next chunk
+              return await read();
+            } else {
+              return context.response!.text();
             }
-
-            return await read();
           })();
           const parseFunction = context.options.parseResponse || destr;
           context.response._data = parseFunction(data);