web: Fix Enter key being handled as character E

CHANGELOG.md

@@ -8,6 +8,8 @@ And please only add new entries to the top of this list, right below the `# Unre
 
 # Unreleased
 
+- On Web, fix Enter key being handled as the character E if `with_prevent_default` is false.
+
 # 0.28.1
 
 - On Wayland, fix crash when dropping a window in multi-window setup.

src/platform_impl/web/web_sys/canvas.rs

@@ -239,6 +239,11 @@ impl Canvas {
                     event.prevent_default();
                 }
 
+                if event.key().len() > 1 {
+                    // ignore keypress for "Enter" key etc.
+                    return;
+                }
+
                 handler(event::codepoint(&event));
             },
         ));