LibWeb: Add @@toStringTag to platform object prototypes

This was forgotten to be added in the LibWeb GC conversion.
This caused some brand checks to fail in skribbl.io's JavaScript and
thus caused unexpected exceptions.

1 files changed, 2 insertions, 0 deletions

diff --git a/Meta/Lagom/Tools/CodeGenerators/LibWeb/BindingsGenerator/IDLGenerators.cpp b/Meta/Lagom/Tools/CodeGenerators/LibWeb/BindingsGenerator/IDLGenerators.cpp
index 01859e556b..a316d696a9 100644
--- a/Meta/Lagom/Tools/CodeGenerators/LibWeb/BindingsGenerator/IDLGenerators.cpp
+++ b/Meta/Lagom/Tools/CodeGenerators/LibWeb/BindingsGenerator/IDLGenerators.cpp
@@ -2574,6 +2574,8 @@ void @prototype_class@::initialize(JS::Realm& realm)
     }
 
     generator.append(R"~~~(
+    define_direct_property(*vm.well_known_symbol_to_string_tag(), js_string(vm, "@name@"), JS::Attribute::Configurable);
+
     Object::initialize(realm);
 }
 )~~~");