fix: return 400 for malformed JSON instead of 500#7
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justin-schroeder merged 1 commit intoJun 16, 2026
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parseJsonBody() did not wrap request.json(), so a SyntaxError from malformed JSON bubbled up as a 500 internal_error. Now catches the parse failure and throws a proper HttpError(400). - worker/http.ts: wrap request.json() in try/catch - worker/index.test.ts: test verifying 400 response for invalid JSON
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Thanks, @iRonin. I validated this locally, merged it, and I’m including it in the patch release. |
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Problem
parseJsonBody()inworker/http.tsvalidates Content-Type but does not wraprequest.json(). If the body contains malformed JSON,request.json()throws a rawSyntaxError, which bypassesHttpErrorhandling and renders as a 500internal_errorinstead of a 400.Fix
Wrap
request.json()in a try/catch that throwsHttpError("Invalid JSON in request body", 400).Files changed
worker/http.ts— try/catch aroundrequest.json()worker/index.test.ts— test asserting 400 for malformed JSON