LibWeb: Make factory method of DOM::HTMLCollection fallible

Author: https://github.com/kennethmyhra
Commit: ff875d353b
Pull-request: https://github.com/SerenityOS/serenity/pull/17491
Reviewed-by: https://github.com/linusg ✅

Userland/Libraries/LibWeb/HTML/HTMLTableElement.cpp

@@ -264,7 +264,7 @@ JS::NonnullGCPtr<DOM::HTMLCollection> HTMLTableElement::t_bodies()
     if (!m_t_bodies) {
         m_t_bodies = DOM::HTMLCollection::create(*this, [](DOM::Element const& element) {
             return element.local_name() == TagNames::tbody;
-        });
+        }).release_value_but_fixme_should_propagate_errors();
     }
     return *m_t_bodies;
 }
@@ -321,7 +321,7 @@ JS::NonnullGCPtr<DOM::HTMLCollection> HTMLTableElement::rows()
             }
 
             return false;
-        });
+        }).release_value_but_fixme_should_propagate_errors();
     }
     return *m_rows;
 }