karm-http: Oops hard coded mime type for file:// urls.

Author: sleepy-monax

src/libs/karm-gc/heap.h

@@ -31,6 +31,7 @@ struct Heap : Meta::Pinned {
             _root = next;
         }
 
+        _root = nullptr;
         _last = nullptr;
     }
 

src/libs/karm-http/client.cpp

@@ -171,7 +171,6 @@ struct LocalClient : public Client {
         auto response = makeRc<Response>();
 
         response->code = Code::OK;
-        response->header.add("Content-Type", "text/html");
 
         if (request->method == Method::GET)
             response->body = co_try$(_load(request->url));

src/web/vaev-driver/loader.cpp

@@ -30,6 +30,7 @@ Async::Task<Gc::Ref<Dom::Document>> _loadDocumentAsync(Gc::Heap& heap, Mime::Url
 
     if (not resp->body)
         co_return Error::invalidInput("response body is missing");
+
     auto respBody = resp->body.unwrap();
 
     auto buf = co_trya$(Aio::readAllUtf8Async(*respBody));