Retry calls of `$next` in middleware

[legionth]

@clue had a question about the retries of $next . Can be found in PR #12.

I'd like to implement a middleware that retries its "$next" 3 times if it throws an Exception, is this possible already?

This question should be evaluated through a simple example. If it's not possible this feature should be added.

[clue]

I have not tried this, but here's the basic idea of a middleware that retries calling $next once:

$middleware = function ($request, $next) {
    try {
        return $next($request);
    } catch (Exception $ignored) {
        // ignore error and just retry
        return $next($request);
    }
};

What do you think about this? Does this make sense?

(Should this be conflated with #14?)

[legionth]

Currently the array_shift will pop the next middleware, so this won't work. Will work on a solution for this problem.