Not bale to check the answer

Question

After solving the question, I click on the check button and instead of checking the answer my phone keyboard is opened

Answer 1

its because in fill in the blanks if you don't enter all the alphabets the answer contains,it will open up the keyboard.
suppose the answer is "python" but you answered "java" your answer wont be taken. you have to fill 6 spaces for the answer "python". you can type "jquery" it contains the same number of alphabets.