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Novus Examples
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Source map with sourceRoot, relative sources and an ignore list

A v3 map that resolves its sources through a `sourceRoot` scheme URL, uses `../` relative paths, leaves one sourcesContent entry null, and marks the second source as third-party via x_google_ignoreList. For testing URL joining and ignore-list support in a debugger.

Web assetsCode parsingJSON parsing
Preview — first 22 linesjson
{
  "version": 3,
  "file": "bundle.min.js",
  "sourceRoot": "webpack:///./",
  "sources": [
    "../src/greet.js",
    "../src/index.js"
  ],
  "sourcesContent": [
    "export function greet(name) {\n  return `Hello, ${name}!`;\n}\n",
    null
  ],
  "names": [
    "greet",
    "name"
  ],
  "mappings": "MAAOA,WAAeC,GACpB,qBCAF,YAAYD",
  "x_google_ignoreList": [
    1
  ]
}

Specifications

Seed
70400
Site
example.com (fictional)
Version
3
Source Root
webpack:///./
Sources
2
Relative Sources
true
Null Sources Content
1
Ignore List
1

Testing contract

Expected to pass
Scenario
Resolve source URLs and decide which frames to hide.
Expected result
sources join to webpack:///src/greet.js and webpack:///src/index.js; the null sourcesContent entry is treated as absent rather than as an empty file; index.js is marked ignored so its frames collapse by default.

What is a .json file?

JSON (JavaScript Object Notation) is a lightweight, text-based data-interchange format representing objects, arrays, strings, numbers, booleans, and null. It is language-independent, human-readable, and the dominant format for web APIs and configuration. It requires a single well-formed root value.

How to use this file

Use an example JSON file to test parsers and serializers, schema validation, Unicode and number-precision handling, and API request or response processing.

How to use this file for testing

“Source map with sourceRoot, relative sources and an ignore list” is a deterministic Novus Examples fixture for Web assets, Code parsing, JSON parsing. Favicons, web app manifests, service workers, robots and sitemap files, Open Graph images, and .well-known resources — for testing web tooling, crawlers, PWA installers, and asset pipelines.

Documented properties for this file: seed 70400. Compare results against paired or grouped companions on this page when present (clean↔damaged, searchable↔scanned, or format twins) so scores stay reproducible across runs.

Download the file once, keep the path stable in CI or local scripts, and treat the spec table as the contract: dimensions, seeds, field lists, and roles are intentional. Corrupt or invalid samples are labelled as such — expect parsers to fail loudly rather than silently accept them.

Web-platform fixtures are standards-compliant samples against fictional example.com data. Test crawlers, PWA installers and manifest validators, favicon/icon pipelines, service-worker registration, or .well-known parsers against the documented structure.

Code examples

import json

with open("sourcemap-sourceroot-ignorelist.json") as f:
    data = json.load(f)
print(type(data), len(data))

Related files

Generated by generation/web_p7.py. Free for any use, no attribution required — license.