[fix] IE11 support

src/.browserslistrc → .browserslistrc

@@ -8,4 +8,5 @@
 last 2 versions
 Firefox ESR
 not dead
-not IE 9-11
\ No newline at end of file
+not IE 9-10
+not IE 11

.gitlab-ci.yml

@@ -12,6 +12,7 @@ build:
     paths:
       - node_modules/
   script:
+    - rm -rf package-lock.json
     - npm install --loglevel=error --no-progress
     - ./node_modules/@angular/cli/bin/ng build --progress false --configuration production
     - cd dist/