feat: Expose onLoad and forceLoad (#1558)

Author: HazAT

packages/browser/src/index.ts

@@ -28,7 +28,7 @@ export {
 
 export { BrowserBackend, BrowserOptions } from './backend';
 export { BrowserClient } from './client';
-export { defaultIntegrations, init, lastEventId, showReportDialog } from './sdk';
+export { defaultIntegrations, forceLoad, init, lastEventId, onLoad, showReportDialog } from './sdk';
 export { SDK_NAME, SDK_VERSION } from './version';
 
 import { Integrations as CoreIntegrations } from '@sentry/core';

packages/browser/src/sdk.ts

@@ -115,3 +115,17 @@ export function showReportDialog(
 export function lastEventId(): string | undefined {
   return getCurrentHub().lastEventId();
 }
+
+/**
+ * This function is here to be API compatible with the loader
+ */
+export function forceLoad(): void {
+  // Noop
+}
+
+/**
+ * This function is here to be API compatible with the loader
+ */
+export function onLoad(callback: () => void): void {
+  callback();
+}