I want to keep some sensitive information into my html code so that I can use that when required in JavaScript file.I have written 3 hidden fields in html form but it's still visible when we see html page source.<form id="videoAddForm"> <input type="hidden" style="visibility: hidden;" id="cz" value="Y7bb6IRbj35nZNop" /> <input type="hidden" style="visibility: hidden;" id="dz" value="AKIA53CEIWDMXST2" /> <input type="hidden" style="visibility: hidden;" id="ez" value="CrTOSfuBj7fVv+8q" /> </form>