function
keyword)
gem install browser
but this seems to be something different. Then I cloned the opal-browser repository, ran "bundle" in it, then tried to require_relative from my app.rb to the path of the browser.rb, but opal always gives me the message "can't find file: "browser" in:```Opal.modules["engine/game_error"] = function(Opal) {
var self = Opal.top, $nesting = [], nil = Opal.nil,
KaTeX parse error: Can't use function '$' in math mode at position 1: $̲ = Opal.const_g…: $ = Opal.const_get_qualified,
= Opal.const_get_relative, $breaker = Opal.breaker, $slice = Opal.slice, $module = Opal.module, $klass = Opal.klass; return (function($base, $parent_nesting) {
var self = $module($base, 'Engine');
var $nesting = [self].concat($parent_nesting);
(function($base, $super, $parent_nesting) {
var self = $klass($base, $super, 'GameError');
var $nesting = [self].concat($parent_nesting);
return nil
})($nesting[0], $$($nesting, 'RuntimeError'), $nesting)
})($nesting[0], $nesting)
};
```