diff --git a/packages/loaders/url/src/index.ts b/packages/loaders/url/src/index.ts
index f2411f107d7..e86c1fb44d2 100644
--- a/packages/loaders/url/src/index.ts
+++ b/packages/loaders/url/src/index.ts
@@ -21,7 +21,7 @@ import { fetch as crossFetch } from 'cross-fetch';
 import { introspectSchema, wrapSchema } from '@graphql-tools/wrap';
 import { ClientOptions, createClient } from 'graphql-ws';
 import WebSocket from 'isomorphic-ws';
-import syncFetch from 'sync-fetch';
+import syncFetchImported from 'sync-fetch';
 import isPromise from 'is-promise';
 import { extractFiles, isExtractableFile } from 'extract-files';
 import FormData from 'form-data';
@@ -33,6 +33,15 @@ import _ from 'lodash';
 import { ValueOrPromise } from 'value-or-promise';
 import { isLiveQueryOperationDefinitionNode } from '@n1ru4l/graphql-live-query';
 
+const syncFetch: SyncFetchFn = (input: RequestInfo, init?: RequestInit): SyncResponse => {
+  if (typeof input === 'string') {
+    delete init?.signal;
+  } else {
+    delete (input as any).signal;
+  }
+  return syncFetchImported(input, init);
+};
+
 export type AsyncFetchFn = typeof import('cross-fetch').fetch;
 export type SyncFetchFn = (input: RequestInfo, init?: RequestInit) => SyncResponse;
 export type SyncResponse = Omit<Response, 'json' | 'text'> & {
@@ -41,10 +50,8 @@ export type SyncResponse = Omit<Response, 'json' | 'text'> & {
 };
 export type FetchFn = AsyncFetchFn | SyncFetchFn;
 
-// TODO: Should the types here be changed to T extends Record<string, any> ?
-export type AsyncImportFn<T = unknown> = (moduleName: string) => PromiseLike<T>;
-// TODO: Should the types here be changed to T extends Record<string, any> ?
-export type SyncImportFn<T = unknown> = (moduleName: string) => T;
+export type AsyncImportFn = (moduleName: string) => PromiseLike<any>;
+export type SyncImportFn = (moduleName: string) => any;
 
 const asyncImport: AsyncImportFn = (moduleName: string) => import(moduleName);
 const syncImport: SyncImportFn = (moduleName: string) => require(moduleName);
@@ -472,10 +479,10 @@ export class UrlLoader implements Loader<LoadFromUrlOptions> {
     fetch: AsyncFetchFn,
     options?: Omit<LoadFromUrlOptions, 'subscriptionEndpoint'>
   ): AsyncExecutor<any, ExecutionExtensions> {
-    return async ({ document, variables, extensions }) => {
+    return async ({ document, variables, extensions, operationName }) => {
       const controller = new AbortController();
       const query = print(document);
-      const finalUrl = this.prepareGETUrl({ baseUrl: endpoint, query, variables });
+      const finalUrl = this.prepareGETUrl({ baseUrl: endpoint, query, variables, operationName, extensions });
       return observableToAsyncIterable({
         subscribe: observer => {
           const headers = Object.assign({}, options?.headers || {}, extensions?.headers || {});
@@ -530,17 +537,21 @@ export class UrlLoader implements Loader<LoadFromUrlOptions> {
     if (customFetch) {
       if (typeof customFetch === 'string') {
         const [moduleName, fetchFnName] = customFetch.split('#');
-        const moduleResult = importFn(moduleName);
-        if (isPromise(moduleResult)) {
-          return moduleResult.then(module => (fetchFnName ? (module as Record<string, any>)[fetchFnName] : module));
-        } else {
-          return fetchFnName ? (module as Record<string, any>)[fetchFnName] : moduleResult;
-        }
+        return new ValueOrPromise(() => importFn(moduleName))
+          .then(module => (fetchFnName ? (module as Record<string, any>)[fetchFnName] : module))
+          .resolve();
       } else {
         return customFetch as any;
       }
     }
-    return importFn === asyncImport ? (typeof fetch === 'undefined' ? crossFetch : fetch) : syncFetch;
+    if (importFn === asyncImport) {
+      if (typeof fetch === 'undefined') {
+        return crossFetch as any;
+      }
+      return fetch as any;
+    } else {
+      return syncFetch;
+    }
   }
 
   private getDefaultMethodFromOptions(method: LoadFromUrlOptions['method'], defaultMethod: 'GET' | 'POST') {
@@ -560,12 +571,9 @@ export class UrlLoader implements Loader<LoadFromUrlOptions> {
   ): typeof WebSocket | PromiseLike<typeof WebSocket> {
     if (typeof options?.webSocketImpl === 'string') {
       const [moduleName, webSocketImplName] = options.webSocketImpl.split('#');
-      const importedModule = importFn(moduleName);
-      if (isPromise(importedModule)) {
-        return importedModule.then(webSocketImplName ? importedModule[webSocketImplName] : importedModule);
-      } else {
-        return webSocketImplName ? (importedModule as Record<string, any>)[webSocketImplName] : importedModule;
-      }
+      return new ValueOrPromise(() => importFn(moduleName))
+        .then(importedModule => (webSocketImplName ? importedModule[webSocketImplName] : importedModule))
+        .resolve();
     } else {
       const websocketImpl = options?.webSocketImpl || WebSocket;
       return websocketImpl;