Description

Hot Reload on a Blazor app doesn't work inside an iframe. See the attached video and sample code.

Sample code: 📦BlazorWasmApp1.zip

The solution I'd like

I know this is intentional by design, as mentioned in the pull request: #21954. However, some edge cases exist where hot reloading support inside an iframe is essential. For instance, the clone of Storybook for Blazor, "Blazing Story" (https://github.com/jsakamoto/BlazingStory), requires such ability because it has to host a preview of the story using an iframe.

Therefore, I hope we have a public "escape hatch" API allowing developers to explicitly enable hot reloading inside an iframe for such a particular scenario.