pick one:

$actionData =~ tr/\t//d;
[download]

or

$actionData =~ s/\t//g;
[download]

Since you aren't dealing with . or anchors, the m and s modifiers for s/// are not necessary.

jeffa

L-LL-L--L-LL-L--L-LL-L--
-R--R-RR-R--R-RR-R--R-RR
B--B--B--B--B--B--B--B--
H---H---H---H---H---H---
(the triplet paradiddle with high-hat)