Window did not load after 5000ms

[Ferm0494]

Hello I'm trying to communicate a React App with an Iframe for payment, however, the communication between these 2 is intermentely, sometimes postRobot.send(iframe.contentWindow,'user',{....}, {domain:'https://${hostOfmyIframe}.com'}

Such sometimes I'm able to make a successful request, and sometimes I'm not able to make the request that appears this error of the window not being loaded when send is being called.

NOTE:

1. I've already checked this Window did not load after 5000ms #73
2. Both app and iframe are within the same version: 8.0.18.