Add comment about radio button activation muddiness

jsdom · Jan 14, 2020 · c292572 · c292572
1 parent 52109d5
commit c292572
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/lib/jsdom/living/nodes/HTMLInputElement-impl.js b/lib/jsdom/living/nodes/HTMLInputElement-impl.js
@@ -165,6 +165,8 @@ class HTMLInputElementImpl extends HTMLElementImpl {
   }
 
   _legacyPreActivationBehavior() {
+    // The spec says we should check this._mutable here, but browsers don't seem to implement this behavior. See
+    // https://github.com/whatwg/html/issues/3239.
     if (this.type === "checkbox") {
       this.checked = !this.checked;
     } else if (this.type === "radio") {
@@ -174,6 +176,8 @@ class HTMLInputElementImpl extends HTMLElementImpl {
   }
 
   _legacyCanceledActivationBehavior() {
+    // The spec says we should check this._mutable here, but browsers don't seem to implement this behavior. See
+    // https://github.com/whatwg/html/issues/3239.
     if (this.type === "checkbox") {
       this.checked = !this.checked;
     } else if (this.type === "radio") {