Comment 35 for bug 1846423

Bill, I'm sure patches are welcome.

If you are not a developer yourself, or don't have time to work on this, perhaps you should consider funding the work yourself, for example by posting a bounty at https://www.bountysource.com/issues/95686166-1560151-got-a-value-parameter-with-an-illegal-type-for-property-value-duration.