I'm currently developing theme and was only using Chrome to test everything. Everything went well so then I test it on other browser. It was great, it works well on every modern browser but then something strange happened.
I'm testing it on customizer. Chrome load the theme perfectly and everything's good. Opera and Firefox shows nothing but blank screen.
I have checked on Butterfly and Firebug, and it shows no error. I have disabled all styles and scripts but still Opera and Firefox failed to load my theme on Customizer.
I think it strange because Chrome does showing it?
What possibly be wrong? Can anyone tell?