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-rw-r--r--packages/instant/src/index.umd.ts10
1 files changed, 5 insertions, 5 deletions
diff --git a/packages/instant/src/index.umd.ts b/packages/instant/src/index.umd.ts
index 449453b56..7391e2844 100644
--- a/packages/instant/src/index.umd.ts
+++ b/packages/instant/src/index.umd.ts
@@ -91,12 +91,12 @@ export const render = (config: ZeroExInstantConfig, selector: string = DEFAULT_Z
// If the integrator defined a popstate handler, save it to __zeroExInstantIntegratorsPopStateHandler
// unless we have already done so on a previous render.
const anyWindow = window as any;
- if (window.onpopstate && !anyWindow.__zeroExInstantIntegratorsPopStateHandler) {
- anyWindow.__zeroExInstantIntegratorsPopStateHandler = window.onpopstate.bind(window);
- }
- const integratorsOnPopStateHandler = anyWindow.__zeroExInstantIntegratorsPopStateHandler || util.boundNoop;
+ const popStateExistsAndNotSetPreviously = window.onpopstate && !anyWindow.__zeroExInstantIntegratorsPopStateHandler;
+ anyWindow.__zeroExInstantIntegratorsPopStateHandler = popStateExistsAndNotSetPreviously
+ ? anyWindow.onpopstate.bind(window)
+ : util.boundNoop;
const onPopStateHandler = (e: PopStateEvent) => {
- integratorsOnPopStateHandler(e);
+ anyWindow.__zeroExInstantIntegratorsPopStateHandler(e);
const newState = e.state;
if (newState && newState.zeroExInstantShowing) {
// We have returned to a history state that expects instant to be rendered.