
PASS Passing a String object to FormData.append should work. 
PASS testFormDataAppend1 
PASS testFormDataAppend2 
PASS testFormDataAppendUndefined1 
PASS testFormDataAppendUndefined2 
PASS testFormDataAppendNull1 
PASS testFormDataAppendNull2 
PASS testFormDataAppendToForm1 
PASS testFormDataAppendToForm2 
PASS testFormDataAppendToFormUndefined1 
PASS testFormDataAppendToFormUndefined2 
PASS testFormDataAppendToFormNull1 
PASS testFormDataAppendToFormNull2 
PASS testFormDataAppendEmptyBlob