Ah. Looks like GET is not enough. How interesting; I'd never before seen a website actually use the HTTP OPTIONS method. However, it's supported in ABE.
Please change the 'Accept GET from web.airdroid.com' to simply 'Accept from web.airdroid.com' (to accept all HTTP methods).
Please change the 'Accept GET from web.airdroid.com' to simply 'Accept from web.airdroid.com' (to accept all HTTP methods).