how to match against a list in v11?

class match works only with datagroups. It does not work with Tcl lists. The drawbacks of not using datagroups include:

1. class matching runs in O(1) time, so the size of the datagroup does not affect the search performance. This is not true for Tcl lists (though you should get something better than O(n) for large lists if you use a Tcl dictionary);
2. using Tcl lists generally require "inflating" the lists before the command can operate on it, which consumes CPU and memory;
3. modifying an iRule requires technicians and engineers to know code, at least to some degree, and the list elements cannot be changed via tmsh or the WebUI.

Having said that, to search a Tcl list, you can use the lsearch method:

when RULE_INIT {
    set static::endpoints [list /about /cblock]
}

when HTTP_REQUEST {
    if { [lsearch -glob $static::endpoint "[HTTP::uri]*"] != -1 } {
        pool cms
    }
}

There are other ways, but this is likely the simplest.