Errortrace breaks in non-Racket REPL

[shhyou]

What version of Racket are you using? e.g., v8.15

What program did you run? Please include a short example that triggers the bug

Let test.scrbl be an empty Scribble file:

#lang scribble/base
;; EOF

It does not work with errortrace in REPL:

$ racket
Welcome to Racket v8.15.0.12 [cs].
> (require errortrace)
> (enter! "test.scrbl")
<pkgs>/errortrace-lib/errortrace/private/utils.rkt:34:14: begin: unbound identifier;
 also, no #%app syntax transformer is bound
  at: begin
  in: (begin (#%require (for-meta 1 errortrace/errortrace-key)) (#%require (for-meta 0 errortrace/errortrace-key)))
 [,bt for context]

What should have happened?

The program loads just like the case without errortrace:

Welcome to Racket v8.15.0.12 [cs].
> (enter! "test.scrbl")
"test.scrbl"> title
#<procedure:title>
"test.scrbl"> section
#<procedure:section>
"test.scrbl"> 1234
1234
"test.scrbl"> (+ 5 3)

If you got an error message, please include it here.

<pkgs>/errortrace-lib/errortrace/private/utils.rkt:34:14: begin: unbound identifier;
 also, no #%app syntax transformer is bound
  at: begin
  in: (begin (#%require (for-meta 1 errortrace/errortrace-key)) (#%require (for-meta 0 errortrace/errortrace-key)))
 [,bt for context]

[shhyou]

EDITED: for #lang htdp/isl+ v7.9 did work but for .scrbl it doesn't.

This works in v7.9 (BC) but breaks in v8.0 (BC).

●[Jan15 12:43:35] $ ..../v79-bc/bin/racket
Welcome to Racket v7.9 [bc].
> (require errortrace)
> (enter! "my-code.rkt")
1/10
#<procedure:my-add1>
"my-code.rkt"> (my-add1 3)
; application: not a procedure;
;  expected a procedure that can be applied to arguments
;   given: 3
; [,bt for context]
"my-code.rkt"> ,bt
; application: not a procedure;
;  expected a procedure that can be applied to arguments
;   given: 3
;   arguments...:
;    9
;   errortrace...:
;    ..../my-code.rkt:6:5: (x 9)
;    ..../my-code.rkt:6:2: (* (x 9) 2)
;   context...:
;    ..../my-code.rkt:5:0: my-add1
;    ..../v79-bc/share/pkgs/xrepl-lib/xrepl/xrepl.rkt:1493:0
;    ..../v79-bc/collects/racket/repl.rkt:11:26
"my-code.rkt"> ^D