diff --git a/src/browser/ScriptManager.zig b/src/browser/ScriptManager.zig
index 06e94083..5f916fed 100644
--- a/src/browser/ScriptManager.zig
+++ b/src/browser/ScriptManager.zig
@@ -218,7 +218,7 @@ pub fn addFromElement(self: *ScriptManager, script_element: *Element.Html.Script
         .url = remote_url orelse page.url,
         .mode = blk: {
             if (source == .@"inline") {
-                break :blk .normal;
+                break :blk if (kind == .module) .@"defer" else .normal;
             }
             if (element.getAttributeSafe("async") != null) {
                 break :blk .async;
diff --git a/src/browser/tests/element/html/script/order.html b/src/browser/tests/element/html/script/order.html
new file mode 100644
index 00000000..159e68cc
--- /dev/null
+++ b/src/browser/tests/element/html/script/order.html
@@ -0,0 +1,35 @@
+<!DOCTYPE html>
+<script src="../../../testing.js"></script>
+
+<script defer id="remote_defer" src="order_defer.js"></script>
+<script defer id="remote_async" src="order_async.js"></script>
+
+<script type=module id="inline_module">
+    // inline module is always deferred.
+    list += 'g';
+    testing.expectEqual('abcdefg', list);
+</script>
+
+<script>
+    var list = '';
+</script>
+
+<script id="remote" src="order.js"></script>
+
+<script async id="inline_async">
+    // inline script ignore async
+    list += 'b';
+    testing.expectEqual('ab', list);
+</script>
+
+<script defer id="inline_defer">
+    // inline script ignore defer
+    list += 'c';
+    testing.expectEqual('abc', list);
+</script>
+
+<script id="default">
+    // simple inline script
+    list += 'd';
+    testing.expectEqual('abcd', list);
+</script>
diff --git a/src/browser/tests/element/html/script/order.js b/src/browser/tests/element/html/script/order.js
new file mode 100644
index 00000000..31e602fc
--- /dev/null
+++ b/src/browser/tests/element/html/script/order.js
@@ -0,0 +1,2 @@
+list += 'a';
+testing.expectEqual('a', list);
diff --git a/src/browser/tests/element/html/script/order_async.js b/src/browser/tests/element/html/script/order_async.js
new file mode 100644
index 00000000..343b7e69
--- /dev/null
+++ b/src/browser/tests/element/html/script/order_async.js
@@ -0,0 +1,2 @@
+list += 'f';
+testing.expectEqual('abcdef', list);
diff --git a/src/browser/tests/element/html/script/order_defer.js b/src/browser/tests/element/html/script/order_defer.js
new file mode 100644
index 00000000..3911b644
--- /dev/null
+++ b/src/browser/tests/element/html/script/order_defer.js
@@ -0,0 +1,2 @@
+list += 'e';
+testing.expectEqual('abcde', list);
diff --git a/src/browser/webapi/event/ErrorEvent.zig b/src/browser/webapi/event/ErrorEvent.zig
index 257cf178..08124d7f 100644
--- a/src/browser/webapi/event/ErrorEvent.zig
+++ b/src/browser/webapi/event/ErrorEvent.zig
@@ -103,7 +103,7 @@ pub const JsApi = struct {
     pub const filename = bridge.accessor(ErrorEvent.getFilename, null, .{});
     pub const lineno = bridge.accessor(ErrorEvent.getLineNumber, null, .{});
     pub const colno = bridge.accessor(ErrorEvent.getColumnNumber, null, .{});
-    pub const @"error" = bridge.accessor(ErrorEvent.getError, null, .{});
+    pub const @"error" = bridge.accessor(ErrorEvent.getError, null, .{ .null_as_undefined = true });
 };
 
 const testing = @import("../../../testing.zig");
