- ABP Framework version: v4.3.3 
- UI type: MVC 
- DB provider: EF Core 
- Tiered (MVC) or Identity Server Separated (Angular): no 
- Exception message and stack trace: Reference : https://docs.abp.io/en/abp/4.4/UI/AspNetCore/Bundling-Minification 
- Steps to reproduce the issue:" 1.Use abp suite create project (included Public) Lepton Theme 
 2.deploy it to iis and use page speed (LightHouse) to scan
1.Dose abp-style-bundle or abp-style-bundle provide  async loading ?
if i create a bundle with name(Unify.Globall). <abp-style-bundle name="@UnifyThemeBundles.Styles.Global" />``<abp-script-bundle name="@UnifyThemeBundles.Scripts.Global" />
the render result is
<link rel="stylesheet" href="/__bundles/Unify.Global.9B494C08AF327BA4383EC09ACFB31C89.css?_v=637691929446285346" />.
I want  it render as <link rel="preload" href="/__bundles/Unify.Global.9B494C08AF327BA4383EC09ACFB31C89.css?_v=637691929446285346" /> to solve page speed issue
2.What if bootstrap or jquery come from CDN ,Write Directly on Default.cshtml(Layout Page) without abp-bundle?
PS.I buy a theme from ThemeMarket, some of js,css cant not be use cdn and i also need to make google page speed with green score(90~100).
3 Answer(s)
- 
    01 You can try to override the AbpTagHelperStyleService.https://github.com/abpframework/abp/blob/dev/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Bundling/Volo/Abp/AspNetCore/Mvc/UI/Bundling/TagHelpers/AbpTagHelperStyleService.cs#L46 2 You can remote some js or css from the Bundling. https://docs.abp.io/en/abp/latest/UI/AspNetCore/Bundling-Minification#bundle-contributors 
- 
    0thanks, i will try this. Dose abp have any plan to add more tag service for solve this? 1.load CSS Asynchronously 2.script async defer loading ? 
- 
    0Yes, https://github.com/abpframework/abp/issues/10306 

 
                                