Nested flows - fetching js assets

[MikeKry]

Hello.

I have found a problem with fetching js assets for empty flow. When using nested flows, assest are not correctly fetched and admin UI is broken.

Setup:

• create content type CT1 with Flow part A
• create custom widget W1 with Flow part B inside of it
• set restriction to W1 in flow part A
• set any other widgets to flowpart B

Test case:

• create new content item of type CT1
• check network tab - no assets are fetched. This causes js errors etc.

Test case 2:

• create new content item of type CT1
• add widget W1 to flow
• save
• assets are correctly fetched

In common use cases with single level flows, restricted content types are fetched with no-data and this ensures assets. But for nested it does not work.

I have created a discussion because I am not sure it is a bug, but I would like to know how to fix this for my project. Any ideas please?

Also I noticed that this approach injects a lot of script tags into DOM.. shouldn't we do something about it?

[MikeKry]

I think, FlowPart should fetch all widgets (here /src/OrchardCore.Modules/OrchardCore.Flows/Views/FlowPart.Edit.cshtml#L98)

or it should recursively call all widgets to include their flow settings and fetch their javascript assets