diff --git a/js/ol-proj4rs-demo-app/.gitignore b/js/ol-proj4rs-demo-app/.gitignore
index 002d65c..16acd49 100644
--- a/js/ol-proj4rs-demo-app/.gitignore
+++ b/js/ol-proj4rs-demo-app/.gitignore
@@ -1,5 +1,3 @@
 node_modules
 dist
-assets/js/*
-assets/pkg/*
 package-lock.json
diff --git a/js/ol-proj4rs-demo-app/assets/js/proj4.js b/js/ol-proj4rs-demo-app/assets/js/proj4.js
new file mode 120000
index 0000000..9d244f5
--- /dev/null
+++ b/js/ol-proj4rs-demo-app/assets/js/proj4.js
@@ -0,0 +1 @@
+../../../proj4.js
\ No newline at end of file