that it was added in the Original Prototype -> No Prototype conversion --
but looking at the code, adding it was clearly a mistake. Removing
String.indexOf. (Note that this has no affect on the code: this function
would never be called, because it wasn't defined on the prototoype.)
(Closes#963)
git-svn-id: http://svn.openlayers.org/trunk/openlayers@4216 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf