overridden defaultHomeScroll config value

[peteboere]

Added 'is defined' check.

[gseguin]

@peteboere, Thank you for the pull request! I noticed that you haven't signed a CLA. Please visit http://contribute.jquery.org/CLA/ and sign it so we can look into your PR.

Thank you.

[peteboere]

Have now signed the CLA.

[arschmitz]

@peteboere what is the use case for this? this is not a configurable default or documented in anyway?

[peteboere]

At the time it was in the source as a configurable default, documented or not.

I don't know if this is still the case though, being a 5 month old pull request.

[arschmitz]

@peteboere this is not a configurable default its a stored calculated value do you have a use case for wanting to override this?

[peteboere]

This default has been exposed for a long time in jqm.

The problem with the value being non-zero is described here #2846

[jaspermdegroot]

There is another (open) ticket for the 1px jump issue: #5488. I suggest we discuss the problem and possible solution there.

[arschmitz]

This variable has never been documented and we intend to continue with this as it may even be removed at some point so i'm closing this.