A Python worker crashes with JSONDecodeError on an empty body while syncing Firepower FDM objects. Earlier in the same request log, a proxy hop returned 502 and the upstream call completed with 204. What is the sound diagnostic move?
Select an answer to reveal the explanation.
Short Explanation
The crash is the stubbed toe; the dark hallway is why you tripped. An empty-body decode error is the local symptom—look earlier for 204 or proxy 502 that supplied nothing to parse. Diagnosis walks back up the trail.
Full Explanation
Exception lines report local failure modes; they often are not the originating fault. A 204 or proxy 502 explaining an empty body is the cause the operator must address. Changing JSON libraries or TLS settings without reading prior hop status mistakes symptom for root cause.