Drape the glass over the wing joint. Pour on a bit of epoxy about the size of a 50 cent piece. Squeegie it out in all directions. Just enough pressure to push throught the glass and into the wood. Spread it out till it looks dry. Pour another bit and repeat till it's done. Let it harden . Put on a second coat and repeat. Spread it out till you can see the glarr fibres. If it looks shiny it's not spread out enough.