On Web, wake event loop on request_redraw()

CHANGELOG.md

@@ -69,6 +69,7 @@ And please only add new entries to the top of this list, right below the `# Unre
 # 0.28.3
 
 - Fix macOS memory leaks.
+- On Web: fix `Window::request_redraw` not waking the event loop when called from outside the loop.
 
 # 0.28.2
 

src/platform_impl/web/event_loop/runner.rs

@@ -157,6 +157,7 @@ impl<T: 'static> Shared<T> {
 
     pub fn request_redraw(&self, id: WindowId) {
         self.0.redraw_pending.borrow_mut().insert(id);
+        self.send_events(iter::empty());
     }
 
     pub fn init(&self) {