Bug- prism fails if the text in a code is empty line

[ObaidAshiq]

Description
When the user try to view the diff in split mode, if the old code and new code have, some empty line, prism throws error for syntax highlighting

Step to reproduce

1. Use the Syntax Highlighting example
2. Add some empty lines in new code variable, in the beggining (These variables should contain string value)
3. Set split mode to true

Screenshot of error

Screenshot when split mode is false

Code sanbox

Link
Code sandbox example