From c937fe25a35aa7a6505850116d2b8ee9254abd68 Mon Sep 17 00:00:00 2001
From: glennsl <glenn@slotte.net>
Date: Tue, 8 Jun 2021 23:14:03 +0200
Subject: [PATCH] fix(vdom): don't update value property if it hasn't changed

---
 CHANGELOG.md        | 1 +
 src/browser/util.rs | 5 +++++
 2 files changed, 6 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3922a210b..8b2cf648f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -22,6 +22,7 @@
 - Implemented `FromIterator<(impl Into<Cow<'a, str>>, impl Into<Cow<'a, str>>)>` for `Headers`.
 - Derived `Eq` and `PartialEq` for `Header`.
 - Added `Header::name()` and `Header::value()`.
+- Fixed an issue in vdom where inputs with invalid contents being cleared on Firefox
 
 ## v0.8.0
 
diff --git a/src/browser/util.rs b/src/browser/util.rs
index 78d506a26..ebe176951 100644
--- a/src/browser/util.rs
+++ b/src/browser/util.rs
@@ -213,6 +213,11 @@ fn set_html_input_element_value(
     input: &web_sys::HtmlInputElement,
     value: &str,
 ) -> Result<(), Cow<'static, str>> {
+    // Don't update if value hasn't changed
+    if value == input.value() {
+        return Ok(());
+    }
+
     // In some cases we need to set selection manually because
     // otherwise the cursor would jump at the end on some platforms.