Invalid JavaScript minification of string literals

The Autoptimize JavaScript minification process incorrectly transforms string literals inside JavaScript code, breaking expected runtime behavior. In particular, string arguments passed to functions are modified during minification, resulting in invalid logic and runtime errors in the browser.

Original code (before minification):

let r=()=>.${(t.params.wrapperClass||).trim().split( ).join(.)}

Minified / transformed code (after Autoptimize):

let r=()=>.${(t.params.wrapperClass||).trim().split().join(.)}

Issue

The minifier incorrectly transforms:

.split()

into:

.split()

This changes the logic from splitting a class string by spaces into splitting it into individual characters.

Impact

This leads to invalid CSS class selectors such as:

.s.w.i.p.e.r.-.w.r.a.p.p.e.r

which causes runtime errors like:

Failed to execute 'matches' on 'Element': '.s.w.i.p.e.r.-.w.r.a.p.p.e.r' is not a valid selector