Figuring out the right way to handle refs/event listeners in SSR mode is hard...

examples/todomvc/src/lib.rs

@@ -293,6 +293,9 @@ pub fn Todo(cx: Scope, todo: Todo) -> Element {
                 />
                 <label on:dblclick=move |_| {
                     set_editing(true);
+
+                    // guard against the fact that in SSR mode, that ref is actually to a String
+                    #[cfg(any(feature = "csr", feature = "hydrate"))]
                     if let Some(input) = input.dyn_ref::<HtmlInputElement>() {
                         input.focus();
                     }

leptos_macro/src/view.rs

@@ -448,8 +448,11 @@ fn attr_to_tokens(
         };
 
         if mode == Mode::Ssr {
-            // used to fake the initialization; but if we do this, we can't do normal things like .dyn_ref() on an Element
+            // fake the initialization; should only be used in effects or event handlers, which will never run on the server
-            // this will cause some warnings instead about unused setters, while doing SSR
+            // but if we don't initialize it, the compiler will complain
+            navigations.push(quote_spanned! {
+                span => #ident = String::new();
+            });
         } else {
             expressions.push(match &node.value {
                 Some(expr) => {