From c713febe7a43695e5e43762c188f5baf62282687 Mon Sep 17 00:00:00 2001
From: elias <elias.jm.garcia@gmail.com>
Date: Wed, 13 Mar 2019 11:21:58 -0500
Subject: [PATCH] let mark_document_with_no_blocked_loads() take a None value
 silently

---
 components/script/script_thread.rs | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/components/script/script_thread.rs b/components/script/script_thread.rs
index 9e20b09ef20..b3bd5b1c396 100644
--- a/components/script/script_thread.rs
+++ b/components/script/script_thread.rs
@@ -809,11 +809,13 @@ impl ScriptThread {
 
     pub fn mark_document_with_no_blocked_loads(doc: &Document) {
         SCRIPT_THREAD_ROOT.with(|root| {
-            let script_thread = unsafe { &*root.get().unwrap() };
-            script_thread
-                .docs_with_no_blocking_loads
-                .borrow_mut()
-                .insert(Dom::from_ref(doc));
+            unsafe {
+            if let Some(script_thread) = root.get() {
+                (*script_thread)
+                    .docs_with_no_blocking_loads
+                    .borrow_mut()
+                    .insert(Dom::from_ref(doc));
+            }}
         })
     }