problem with encodeURIComponent

[ginerjm]

Are there different version of JS that treat my subject function differently??  I've read some posts that suggest it is true, but how does one get the desired result in those browsers that don't do as expected?

 

I have a js function that sends a URI to a separate PHP script to run in the background and return a result that I then update my client's screen with.  All my testing works just fine on IE9/10 as well as my ipad's Safari.  But - my background php script (which sends me an email whenever it runs) is showing me an "undefined" value for a piece of data sent to it from the client which has been run thru this function.