Index: frontend/node_modules/fast-json-stable-stringify/.travis.yml
===================================================================
--- frontend/node_modules/fast-json-stable-stringify/.travis.yml	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
+++ frontend/node_modules/fast-json-stable-stringify/.travis.yml	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
@@ -0,0 +1,8 @@
+language: node_js
+node_js:
+  - "8"
+  - "10"
+  - "12"
+  - "13"
+after_script:
+  - coveralls < coverage/lcov.info