NoMethodError: undefined method `compact' for "(cyclic structure)":String

[miks]

When using together with Cuprite and executing Rspec command like:
page.evaluate_script("jQuery('body').addClass('not-reloaded');")
it's erroring with:

NoMethodError: undefined method `compact' for "(cyclic structure)":String
from (pry):5:in `rescue in handle_response'
Caused by NoMethodError: undefined method `compact' for "(cyclic structure)":String
from ~/.rvm/gems/ruby-2.5.3/bundler/gems/ferrum-5b6cb3f617b0/lib/ferrum/page/runtime.rb:127:in `handle_response'

Correspoding reduce_props(object_id, []) at https://github.com/route/ferrum/blob/master/lib/ferrum/page/runtime.rb#L122 is returning "(cyclic structure)" String, so it's clear why compact call is failing.

Not sure what's best approach to handle this case.

[route]

Me neither but otherwise you'd get Stack Level too deep (SystemStackError) because it is cyclic structure... I checked selenium and this bugs them as well, though I'd prefer returning something meaningful rather then SystemStackError.

[BenoitMC]

Try to replace evaluate_script by execute_script if you don't need the return, it solved the problem for me.

[miks]

@BenoitMC that did it, thanks!