mswjs/msw `b9dacdbd..0ec75edf`

base and head as given

Server-side request interception entered the library
Server interception now depends on request handlers
A shared response-resolution utility now serves browser and server interception
Header utilities entered response construction and worker message handling

files changed: 36
in a component: 13
lines in components: 307
components: 6
public routes changed: 0
schema statements: 0
new dependencies: 3
excluded by role: 23

Based on 12 of 13 eligible changed files

Server-side request interception

Added

Before: did not exist
After: Server requests can be intercepted

Server-side code can intercept outgoing requests with existing request handlers, return mocked responses after configured delays, and restore interception when finished.

In favour

In favour: Reuses handler predicates and resolvers across browser and server

Against

Against: Server interception supplies fixed defaults for browser-specific request fields

Inspect 4 source files behind this explanation

Header handling

Modified

Before: Prior behavior not established
After: Headers use shared utility objects

Mocked responses now carry shared utility header objects, while worker messages serialize headers into lists before recreating browser responses. Header-setting also accepts object values containing arrays.

In favour

In favour: Preserves repeated header values across worker message serialization

The model found nothing to weigh against this.

Inspect 7 source files behind this explanation

Files changed in 6 components. Dependencies shown: 3 new, 14 unchanged

unchanged · 14new · 31 component added

3 new dependencies between components — Node → Handlers · Node → Utils · Setup Worker → Source

What else could behave differently

6 components · 18 files

These components import changed code, directly or through other files. A traced dependency is a place to review, not a confirmed runtime failure.

Reached 3

Component	Symbol	Cited at	Files	Reached by
Utilssrc/utils/	Signature changed `MockedRequest`1 of 9 changed symbols reaching it	src/handlers/requestHandler.ts:16-32	4	3 direct · 1 at two steps Trace path Shortest component path from the changed symbol: Handlers Utils Later steps follow file imports; they do not prove this symbol is called.
Sourcesrc/	Body changed `fetch`1 of 10 changed symbols reaching it	src/context/fetch.ts:31-49	3	3 direct Trace path Shortest component path from the changed symbol: Context Source Later steps follow file imports; they do not prove this symbol is called.
Handlerssrc/handlers/	Body changed `fetch`1 of 2 changed symbols reaching it	src/context/fetch.ts:31-49	1	1 direct Trace path Shortest component path from the changed symbol: Context Handlers Later steps follow file imports; they do not prove this symbol is called.

Ranked lower 3

Component	Files	Reached by
src/setupWorker/	6	3 direct · 3 at two steps
src/context/	2	2 direct
src/node/	2	2 direct

Statements 3

MockedRequest's signature change reached 4 files in Utils. 31

requestHandler.ts:16-32

fetch's body change reached 3 files in Source. 3

fetch.ts:31-49

fetch's body change reached 1 file in Handlers. 1

fetch.ts:31-49

38 reached files belong to no component — tests, docs and config.

Routes, schema, dependencies

What	Object	Where
+ dependency	@types/node-fetch@^2.5.7	declared, and used by no file in any component
+ dependency	headers-utils@^1.1.9	src/context/fetch.ts:1
+ dependency	node-request-interceptor@^0.2.2	src/node/setupServer.ts:2

3 statements, with the lines behind them

Declared, and used by no file in any component.

headers-utils ^1.1.9 was added as a dependency.

fetch.ts:1

node-request-interceptor ^0.2.2 was added as a dependency.

setupServer.ts:2

Inspect components, files and symbols

Component

UtilsModified

src/utils/

4 files · 174 lines

exports, dependency, 3 dependents

Utils added the getResponse export and removed the getCleanUrl export.

Header handling, modified

SourceModified

src/

3 files · 32 lines

dependency, 4 dependents

Header handling, modified

HandlersModified

src/handlers/

1 file · 8 lines

dependency, 5 dependents

Server-side request interception, added

Setup WorkerModified

src/setupWorker/

1 file · 6 lines

dependency, 3 dependents

Setup Worker added the ResponseWithSerializedHeaders export.

Header handling, modified

ContextModified

src/context/

2 files · 20 lines

dependency, 2 dependents

Header handling, modified

NodeAdded

src/node/

2 files · 67 lines

dependency

Node added the setupServer export.

Server-side request interception, added

File

Handlerssrc/handlers/

requestHandler.ts

+4 −4

Server-side request interception, added

Nodesrc/node/

setupServer.ts

+66 −0

Server-side request interception, added

Nodesrc/node/

index.ts

+1 −0

Server-side request interception, added

Utilssrc/utils/

handleRequestWith.ts

+25 −50

Header handling, modified

Utilssrc/utils/

getResponse.ts

+69 −0

Header handling, modified

Utilssrc/utils/

logger.ts

+14 −10

Header handling, modified

Utilssrc/utils/

getCleanUrl.ts

+0 −6

Header handling, modified

Sourcesrc/

response.ts

+12 −10

Header handling, modified

Sourcesrc/

rest.ts

+3 −3

Header handling, modified

Sourcesrc/

mockServiceWorker.js

+3 −1

Header handling, modified

Setup Workersrc/setupWorker/

glossary.ts

+6 −0

Header handling, modified

Contextsrc/context/

set.ts

+4 −10

Header handling, modified

Contextsrc/context/

fetch.ts

+4 −2

Header handling, modified

Function

imports what changeddownstream of it, one mark per step

MockedRequest()requestHandler.ts

reaches Node

MockedRequest's signature change reached 2 files in Node. 2

requestHandler.ts:16-32

Server-side request interception, added

RequestHandler()requestHandler.ts

reaches Setup Worker

RequestHandler's signature change reached 6 files in Setup Worker. 33

requestHandler.ts:51-62

Server-side request interception, added

fetch()fetch.ts

reaches Context

fetch's body change reached 2 files in Context. 2

fetch.ts:31-49

Header handling, modified

Diff

Handlerssrc/handlers/

requestHandler.ts

1–1, 17–17, 19–19 and 2 more spans

Server-side request interception, added

Nodesrc/node/

setupServer.ts

1–66

Server-side request interception, added

Nodesrc/node/

index.ts

1–1

Server-side request interception, added

Utilssrc/utils/

handleRequestWith.ts

1–1, 3–6, 10–11 and 9 more spans

Header handling, modified

Utilssrc/utils/

getResponse.ts

1–69

Header handling, modified

Utilssrc/utils/

logger.ts

1–1, 3–3, 9–9 and 5 more spans

Header handling, modified

Utilssrc/utils/

getCleanUrl.ts

1–6

Header handling, modified

Sourcesrc/

response.ts

1–1, 25–33, 36–36 and 1 more span

Header handling, modified

Sourcesrc/

rest.ts

2–2, 18–18, 48–48 and 1 more span

Header handling, modified

Sourcesrc/

mockServiceWorker.js

184–186

Header handling, modified

Setup Workersrc/setupWorker/

glossary.ts

2–3, 25–28

Header handling, modified

Contextsrc/context/

set.ts

1–1, 13–15, 24–27

Header handling, modified

Contextsrc/context/

fetch.ts

1–1, 19–19, 22–22 and 1 more span

Header handling, modified

Analysis scope

161 → 6

161
files at head
10
components
6
changed by this change

Where the new files landed

3 new files

New file	Belongs to	Used by	Calls	Serves
src/utils/getResponse.tsimports 1 package this change added	Utilsbase frame	Node	SourceHandlers	—
src/node/2 new filesimports 2 packages this change added	Nodenew territory	its own component only — 1 of 2 files imported by nothing	HandlersUtils	—

5 added files carry no component — 4 test, 1 config.

6components changed

0reached, not changed

1components added/removed

3dependencies added between components

0dependencies removed between components

0files moved to another path

36 files changed, 18 claims stated. 6 components reached in total.