Why do you match on the error string? String.sub is only documented to
raise "Invalid_argument _".

http://caml.inria.fr/pub/docs/manual-ocaml/libref/String.html

On Sat, Sep 13, 2014 at 6:47 PM, Oliver Bandel <oliver@first.in-berlin.de>
wrote:

> Hello,
>
> is this a known bug?
>
> Needed to change code from
>
>    with Invalid_argument("Strings.sub")
> to
>    with Invalid_argument("Bytes.sub")
>
> The code now looks like this and then works again:
>
>
>                   try
>                     if parser_url_len > 0 && parser_url = String.sub url 0
> parser_url_len then parser_name else aux tl
>                   with Invalid_argument("Bytes.sub") -> aux tl (* this
> happens if url is shorter than parser_url *)
>
>
> Ciao,
>    Oliver
>
>
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