Customize error message based on error type

[maxpatiiuk]

The Invalid response code 504. Expected 200. Response: ... error message is not very helpful to a non-technical user.

It would be helpful to display a brief description of a problem and possible solutions (in this case, 504, Gateway Time-out, occurs because server is overloaded, and did not respond to a front-end requests within 60 seconds)

[maxpatiiuk]

@grantfitzsimmons says that 500 error is very common and that more should be done to explain the potential causes in the error message

[grantfitzsimmons]

Any Error: Value is not defined needs to do better. It is possibly the least helpful thing for a user possible

[maxpatiiuk]

The Value is not defined error message should never happen again (fixed in 6b0b102)

The unexpected response code error would now have a message explaining the likely cause and possible solutions.

For testing purposes, you can open the /specify/command/test-error page in Specify to trigger an error

[maxpatiiuk]

@grantfitzsimmons here is the file that defines the error message for each Http response code - https://github.com/specify/specify7/blob/4b93058a678ea80d9c31ba8baac2f30be33cb574/specifyweb/frontend/js_src/lib/utils/ajax/definitions.ts

Feel free to edit that file to provide more details or improve the error messages

[grantfitzsimmons]

#2237

Created a new issue to expand this request.