Use flash scope in Handlebars template without passing the value through controllers

Is there any way to read a value of the flash scope in a Handlebars template (I'm ussing `express-handlebars` module) without passing explicitly from the controller? Something like this:

```

{{flash.error}}

No files or tests are named. Start by reading the connect-flash middleware and the express-handlebars rendering context to determine whether flash values can be exposed without controller plumbing. Done means documenting or implementing a clearly supported way to access flash.error in a Handlebars template.

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