Throwing errors

[literat]

WHEN (situation): programming/coding
WHAT: I'm making mistakes
WHY: Because it happens

Acceptance criteria
Throw error instead of doing something else

When I send a non-existent variable to the API component, it should primarily blow up that I'm working with a non-existent variable in the template.

Instead, using TwigX, the component accepts that variable and prints a tag to the DOM instead of the component's content (which, in addition, does not terminate if the unpaired tag notation is used and, if used that way inside a loop/for loop, plunges more and more inside the un-terminated component with each iteration).