diff --git a/packages/common/spaces/http_space_primitives.ts b/packages/common/spaces/http_space_primitives.ts
index d9f94c6..e567d1c 100644
--- a/packages/common/spaces/http_space_primitives.ts
+++ b/packages/common/spaces/http_space_primitives.ts
@@ -143,7 +143,7 @@ export class HttpSpacePrimitives implements SpacePrimitives {
     if (req.headers.get("Content-length") === "0") {
       return;
     }
-    if (req.headers.get("Content-type") === "application/json") {
+    if (req.headers.get("Content-type")?.includes("application/json")) {
       return await req.json();
     } else {
       return await req.text();