Well this is not a question of a specific problem I have it's more a general question. Yesterday I had a little argument with a friend of mine wehter or not a "high security application" (e-Banking for example) could be implemented in Angular (not specifically angular, client-side SPA's in general).
While I was sure that it would be a very bad idea to implement an e-banking application in Angular, I wasn't able to give a concrete reason, it was more like a feeling I had.
Since then I'm questioning if I might be wrong about that. I'm not very experienced in the field of application security so I'd be thankful if someone more experienced could dispel my doubts wehter I was right or not. (Preferably with explanation)