Incorrect field splitting in &validate parameter

[Ruslan-Aleev]

Bug report

Summary

The fields in the &validate parameter are separated by commas.
And if there is an extra character before / after the field (space, line break, etc.), then field validation does not work.
Clearly uncoordinated field splitting, it's worth adding a trim() or something like that.

Step to reproduce

For example, if you set the parameter like this, validation of the last field (message) does not work.

&validate=`
name:required,
email:email,
phone:required,
message:required
`

But if you remove the line break, then everything will work:

&validate=`
name:required,
email:email,
phone:required,
message:required`

Observed behavior

Field validation does not work.

Expected behavior

Validation should work.

Environment

Related issue - #251

FormIt 4.2.7-pl
MODX 2.8.4

[Ruslan-Aleev]

Validation will work if add a comma at the end of the field, but, as I understand it, it's just that now the validation also happens for an extra empty field.

&validate=`
name:required,
email:email,
phone:required,
message:required,
`