From 0d82115364824f3e52160263df738640126f9566 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pau=20Ferrer=20Oca=C3=B1a?= <crazyserver@gmail.com>
Date: Fri, 11 Mar 2022 10:09:29 +0100
Subject: [PATCH] MOBILE-3814 collapsible: Check frozen state before end the
 transition

---
 src/core/directives/collapsible-header.ts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/core/directives/collapsible-header.ts b/src/core/directives/collapsible-header.ts
index 01f7b0470..faf83ddbe 100644
--- a/src/core/directives/collapsible-header.ts
+++ b/src/core/directives/collapsible-header.ts
@@ -399,6 +399,10 @@ export class CoreCollapsibleHeaderDirective implements OnInit, OnChanges, OnDest
                     return;
                 }
 
+                if (page.classList.contains('is-frozen')) {
+                    return;
+                }
+
                 const progress = parseFloat(page.style.getPropertyValue('--collapsible-header-progress'));
                 const scrollTop = contentScroll.scrollTop;
                 const collapse = progress > 0.5;