There is a certain портал within which various functions are implemented (reports, directories, etc ...)
Historically, it was decided that numerous parts were независимыми , not only in terms of structure or architecture, but also a stack of technologies. It was implemented using iframe in which a отдельное web application was opened. Such applications are on angular 1.x and 2.x, react, just html + css statics and so on.
Question : Are there any ready-made solutions for organizing such an approach without using an iframe , which is a way to have 2 or more separate isolated web applications in one tab. Not always they will be given from one web server.