3 files changed, 8 insertions, 6 deletions

diff --git a/editors/code/src/color_theme.ts b/editors/code/src/color_theme.ts
index cbad47f35..d816f617d 100644
--- a/editors/code/src/color_theme.ts
+++ b/editors/code/src/color_theme.ts
@@ -28,9 +28,11 @@ export class ColorTheme {
     static fromRules(rules: TextMateRule[]): ColorTheme {
         const res = new ColorTheme();
         for (const rule of rules) {
-            const scopes = typeof rule.scope === 'string'
-                ? [rule.scope]
-                : rule.scope;
+            const scopes = typeof rule.scope === 'undefined'
+                ? []
+                : typeof rule.scope === 'string'
+                    ? [rule.scope]
+                    : rule.scope;
             for (const scope of scopes) {
                 res.rules.set(scope, rule.settings);
             }
diff --git a/editors/code/src/highlighting.ts b/editors/code/src/highlighting.ts
index 014e96f75..fc7cd5a1c 100644
--- a/editors/code/src/highlighting.ts
+++ b/editors/code/src/highlighting.ts
@@ -1,7 +1,6 @@
 import * as vscode from 'vscode';
 import * as lc from 'vscode-languageclient';
-import * as seedrandom_ from 'seedrandom';
-const seedrandom = seedrandom_; // https://github.com/jvandemo/generator-angular2-library/issues/221#issuecomment-355945207
+import seedrandom from 'seedrandom';
 
 import { ColorTheme, TextMateRuleSettings } from './color_theme';
 
diff --git a/editors/code/tsconfig.json b/editors/code/tsconfig.json
index e60eb8e5e..1ea433961 100644
--- a/editors/code/tsconfig.json
+++ b/editors/code/tsconfig.json
@@ -13,7 +13,8 @@
         "noUnusedParameters": true,
         "noImplicitReturns": true,
         "noFallthroughCasesInSwitch": true,
-        "newLine": "LF"
+        "newLine": "LF",
+        "esModuleInterop": true,
     },
     "exclude": [
         "node_modules"