Error handling for card saves, including WAF rejections #7417

All 685 tests pass, 1 skipped in 19m 25s

    1 files ±0     1 suites ±0 19m 25s ⏱️ -10s
686 tests ±0 685 ✔️ ±0 1 💤 ±0 0 ❌ ±0
691 runs ±0 690 ✔️ ±0 1 💤 ±0 0 ❌ ±0

Results for commit eea968f. ± Comparison against earlier commit d17abac.