Refuse mistyped optional fields on POST /api/sandboxed with 400 - #514
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davidmckayv merged 2 commits intoSep 13, 2026
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Deep-reviewed clean (validation, no secret leak, fail-closed, agrees with existing layers). CI green.
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Only slug and title were checked; description/html/css/jsFunctions flowed in as
?? ""and argumentSchema/sampleArguments as?? {}, so a number, array or JSON string travelled into a text/jsonb column and came back as an unhandled 500.Absent still means the default; a present text field must be a string (400
The component <field> must be text.) and a present schema field must be a plain object (400The component <field> must be an object.), before the store or the database sees the values.Tests: new server/tests/sandboxed-save-fields.test.ts (22 cases: defaults, well-typed save, 10 non-string text shapes, 9 non-object schema shapes, mixed-body atomicity). Verified: sandboxed routes + save-fields suites — 26 pass.