Handling errors - details/ideas

[krystian8207]

1. tryCatchLog for each main observer method. When error shows:
   a) we display browser alert
   b) we print the current state (erroneous one) to the console (or events logger db)
2. Some exceptions (also extra but higher priority):
   a) when error shown during executing restore method we:

• before starting restore we save the previous state (if the state was empty it's okay)

3. Extra:
   a) We save state before each operation changing cohort state (steps, filters) as a queue of states
   b) When the error is shown we display modal that allows to restore previous state (selected one from history?)