Provide a way to initialise the runtime if not using any runtime features.

docs/src/content/docs/changelog.mdx

@@ -30,7 +30,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - `app.OpenFileManager(path string, selectFile bool)` to open the system file manager to the path `path` with optional highlighting via `selectFile` by [@Krzysztofz01](https://github.com/Krzysztofz01) [@rcalixte](https://github.com/rcalixte)
 - New `-git` flag for `wails3 init` command by [@leaanthony](https://github.com/leaanthony)
-- New `wails3 generate webview2bootstrapper` command by [@leaanthony](https://github.com/leaanthony)2
+- New `wails3 generate webview2bootstrapper` command by [@leaanthony](https://github.com/leaanthony)
+- Added `init()` method in runtime to allow manual initialisation of the runtime by [@leaanthony](https://github.com/leaanthony)
 
 ### Fixed
 

v3/internal/runtime/desktop/@wailsio/runtime/src/index.js

@@ -43,12 +43,16 @@ export {
     WML
 };
 
-var initialised = false;
+let initialised = false;
+export function init() {
+    window._wails.invoke = System.invoke;
+    System.invoke("wails:runtime:ready");
+    initialised = true;
+}
+
 window.addEventListener("load", () => {
     if (!initialised) {
-        window._wails.invoke = System.invoke;
-        System.invoke("wails:runtime:ready");
-        initialised = true;
+        init();
     }
 });