sso_*: fix 500 error caused by expired Okta refresh token #254
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Problem
We're not catching the right error within the
oktaRequestfunction, causing expired refresh tokens to be categorised under an 'unknown' error type. This results in an unclear and awkward UX in cases where the refresh token has expired.Solution
Fix the error string we're searching for, and improve the general UX around this error case a little bit to provide users with a sensible error and an option to sign back in.
Notes
The TTL of a refresh token in Okta is easily and commonly customised, whereas the TTL of a refresh token within Google is set at 6 months by default. This has meant we've ran into this error a little bit more frequently with the Okta provider which is why we're fleshing out the UX a bit. (This error is generally unseen when the Google provider is being used)