Conflict with zoomWheel extension

[kenime]

my JSON viewer was not working and I digged into the code. Turns on another extension "zoomWheel" creates 2 elements under document.body.childNodes, so when JSON viewer is executing getPreWithSource(), the following checking will fail and not considering the page as JSON.

var childNodes = document.body.childNodes;

  if (childNodes.length === 1) {

Would there be any impact if we loosen the checking as childNodes.length > 0 ?

[benvan]

@kenime - are the two elements split-text nodes? If so, see #133

[tulios]

Version 0.16.2 is out! Thanks @benvan for the PR :)