Hi All,
I cannot repro this in an example, which is really frustrating.  This is only happening in mobile, desktop it works fine.  When I get the to page that has the signature I get the following error:
SyntaxError: JSON.parse: unexpected character 
File: jquery.signaturepad.min.js
Line: 26
I have inspected the value of "a" before it gets to "a=JSON.parse(a)" and it has different values for desktop and mobile.
For a signature that is blank, in mobile a has a value of "Y[]" in desktop is has "[]"
The same is true for a filled in signature, it has the preceding Y.
C8 
NT 7.37 
Any suggestions for what I can do to figure out why I have a preceding Y in mobile?
Thanks,
Debra