bug fix palmer
bug fix palmer

wolfgangwalther/jsPsych,erikasf/jsPsych,shamrt/jsPsych,wolfgangwalther/jsPsych,vergenzt/jsPsych,jspsych/jsPsych,jspsych/jsPsych,jodeleeuw/jsPsych,Scienthusiast/jsPsych,andyh616/jsPsych,adrianoesch/jsPsych,shamrt/jsPsych,msrresearch/jsPsych,vergenzt/jsPsych,erikasf/jsPsych,jspsych/jsPsych,andyh616/jsPsych,jspsych/jsPsych,Scienthusiast/jsPsych,adrianoesch/jsPsych