perf(): better optimize esm build

- Drops cssVarShim code - Drops supportsListenerOptions check
ionic-team · Aug 8, 2019 · 66571d0 · 66571d0
1 parent f48d8de
commit 66571d0
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/src/compiler/app-core/optimize-module.ts b/src/compiler/app-core/optimize-module.ts
@@ -10,6 +10,10 @@ export async function optimizeModule(config: d.Config, compilerCtx: d.CompilerCt
   if (sourceTarget !== 'es5' && isCore) {
     if (!isDebug) {
       opts.compress.passes = 3;
+      opts.compress.global_defs = {
+        supportsListenerOptions: true,
+        cssVarShim: false
+      };
       opts.compress.pure_funcs = ['getHostRef', ...opts.compress.pure_funcs];
     }