node-fetch/node-fetch · OSS Lab

BOM byte not stripped from decoded text and JSON bodies

Leading BOM leaks into text() and breaks json()

lockNot currently playableNeeds packaging

EasyAPI & Request FlowNeeds packaging

OSS Labs are training exercises derived from public open-source bug-fix history. Completing a lab is not an upstream contribution or merged PR. Buglyst is not affiliated with these projects.

6425e20Source commit

a4ea5f9Parent commit

MITLicense

53Files

7,010Visible LOC

~20mEst. time

What this lab trains

checkRepository navigation

checkFailing test reproduction

checkRoot cause tracing

checkMinimal patch reasoning

checkPR-style explanation

checkHTTP request/response flow

Failing signal

What you’ll see when you run the visible regression test.

SymptomLeading BOM leaks into text() and breaks json()Entry point hintThe test sends a BOM-prefixed JSON response and expects it to parse. Where does JSON parsing happen?

Repo navigation focus

A public-safe starting path for the large repo snapshot.

Start here

test/response.js

Likely area

test/response.js

PR-style report (preview)

The structured report you produce on accept. This is the format, not a real completion.

differencePR-STYLE REPORT

Sample format

BOM byte not stripped from decoded text and JSON bodiesnode-fetch/node-fetch

Problem

A regression reproduced from public bug-fix history causes a visible test to fail on the parent snapshot.

Root cause

Written by you, in your own words, after tracing the failing test into the runtime source. (Filled in from your submission — not provided here.)

Fix summary

A minimal patch that makes the visible regression test pass without breaking neighbouring behaviour.

Files changed

descriptiontest/<regression>.test.js
descriptionlib/<runtime-source>.js

Files inspected

descriptiontest/<regression>.test.js
descriptionlib/<runtime-source>.js

Tests run

terminalVisible regression test
terminalHidden edge-case validation

Validation result

Visible checks: pendingHidden validation: pending

Resume-safe summary

Completed an OSS-backed Buglyst debugging lab based on public bug-fix history: reproduced a failing test, traced the root cause, and shipped a minimal patch that passed visible and hidden validation. Not an upstream contribution.

OSS Labs are training exercises derived from public open-source bug-fix history. Completing a lab is not an upstream contribution or merged PR. Buglyst is not affiliated with these projects.