Make sure to clearTimeout when unmounting header (#617)
Make sure to clearTimeout when unmounting header (#617)


decred/decrediton,decred/decrediton,oktapodia/decrediton-appveyor-test,decred/decrediton,oktapodia/decrediton-appveyor-test,oktapodia/decrediton-appveyor-test,decred/decrediton,oktapodia/decrediton-appveyor-test,decred/decrediton,decred/decrediton,oktapodia/decrediton-appveyor-test