Ionic PWA didn't load properly when first open in safari

I export the PWA app by using Ionic framework by using cmd ionic build --prod --release

In macOS safari, I need to refresh the page second time only can load the page properly, else it will be just a blank page.
It’s working on iOS safari and chrome browser as well.


Framework: Ionic CLI : 6.10.0 Ionic Framework : @ionic/angular 5.1.1 @angular-devkit/build-angular : 0.901.7 @angular-devkit/schematics : 9.1.6 @angular/cli : 9.1.7 @ionic/angular-toolkit : 2.2.0

Hosting: Firebase hosting
Browser: Safari Version 13.1.1 (15609.

Anyone experience this issue also?