fix: support for NodeJS 15, fixes #732

src/util/performance.ts

@@ -0,0 +1,13 @@
+interface LiquidPerformance {
+  now: () => number
+}
+
+const polyfill: LiquidPerformance = {
+  now: () => Date.now()
+}
+
+export function getPerformance (): LiquidPerformance {
+  return (typeof global === 'object' && global.performance) ||
+    (typeof window === 'object' && window.performance) ||
+    polyfill
+}