diff --git a/src/Microsoft.AspNetCore.Blazor.Browser.JS/src/Services/Http.ts b/src/Microsoft.AspNetCore.Blazor.Browser.JS/src/Services/Http.ts
index 5edc1a7b74..26b68c7166 100644
--- a/src/Microsoft.AspNetCore.Blazor.Browser.JS/src/Services/Http.ts
+++ b/src/Microsoft.AspNetCore.Blazor.Browser.JS/src/Services/Http.ts
@@ -17,7 +17,7 @@ async function sendAsync(id: number, method: string, requestUri: string, body: s
   try {
     response = await fetch(requestUri, {
       method: method,
-      body: body,
+      body: body || undefined,
       headers: headersJson ? (JSON.parse(headersJson) as string[][]) : undefined
     });
     responseText = await response.text();