dedupe svelte package

Author: Conduitry

package.json

@@ -3,10 +3,10 @@
   "version": "1.0.0",
   "devDependencies": {
     "npm-run-all": "^4.1.5",
-    "rollup": "^1.10.1",
-    "rollup-plugin-commonjs": "^9.3.4",
+    "rollup": "^1.12.0",
+    "rollup-plugin-commonjs": "^10.0.0",
     "rollup-plugin-livereload": "^1.0.0",
-    "rollup-plugin-node-resolve": "^4.2.3",
+    "rollup-plugin-node-resolve": "^5.2.0",
     "rollup-plugin-svelte": "^5.0.3",
     "rollup-plugin-terser": "^4.0.4",
     "svelte": "^3.0.0"

rollup.config.js

@@ -30,7 +30,10 @@ export default {
 		// some cases you'll need additional configuration —
 		// consult the documentation for details:
 		// https://github.com/rollup/rollup-plugin-commonjs
-		resolve({ browser: true }),
+		resolve({
+			browser: true,
+			dedupe: importee => importee === 'svelte' || importee.startsWith('svelte/')
+		}),
 		commonjs(),
 
 		// Watch the `public` directory and refresh the