In the final moments of Pacific Rim, how were the Jaeger Pilots able to travel back through the Breach?
Earlier in the film, the scientific team coordinating the Jaeger program identify that the breach is protected by some kind of alien technology. It is said that the breach has a coded forcefield that will only grant access to a Kaiju, and this is given as explanation to why their previous ordinance had failed.
This knowledge is acted upon, and a Jaeger finally passes through the breach and into the unknown, catching a ride on a Kaiju. When the Jaeger initiates its self destruct sequence, the escape pods containing the pilots are ejected towards the surface, back through the breach.
How were the pods able to pass back through the forcefields if they were coded to only let Kaiju through, as stated earlier in the film?