inspector: fix compressed responses

[rubnogueira]

fix: #61222

Using Chrome DevTools inspector tool, the response of the compressed requests is full of garbled symbols.

This PR implements proper compression decryption if the content-encoding header is returned in the response headers.

Repro here: https://github.com/rubnogueira/nodejs-repro-61222

[nodejs-github-bot]

Review requested:

• @nodejs/inspector

[rubnogueira]

Tagging you @legendecas because I saw some of your work on the inspector.

[codecov]

Codecov Report

❌ Patch coverage is 98.76543% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 88.53%. Comparing base (ce2ec3d) to head (061f1a2).
⚠️ Report is 172 commits behind head on main.

Files with missing lines	Patch %	Lines
lib/internal/inspector/network_http.js	98.48%	1 Missing ⚠️
lib/internal/inspector/network_http2.js	98.48%	1 Missing ⚠️

Additional details and impacted files

@@ Coverage Diff @@## main #61226 +/- ##
==========================================
- Coverage 88.54% 88.53% -0.01% 
==========================================
Files 704 704 Lines 208734 208866 +132 Branches 40271 40300 +29 ==========================================
+ Hits 184823 184927 +104 - Misses 15932 15945 +13 - Partials 7979 7994 +15 

Files with missing lines	Coverage Δ
lib/internal/inspector/network.js	96.89% <100.00%> (+0.93%)	⬆️
lib/internal/inspector/network_http.js	95.93% <98.48%> (+0.66%)	⬆️
lib/internal/inspector/network_http2.js	89.32% <98.48%> (+1.58%)	⬆️

... and 50 files with indirect coverage changes

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[rubnogueira]

I just removed irrelevant code, improved testing/linting, built locally Node binary, and tested against my repro. Rebased first commit message following guidelines.

Please let me know if something is missing since it's my first contribution in this repo.

[legendecas]

Thank you, LGTM

[rubnogueira]

@legendecas can you please review my last changes? thanks!

[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/70803/

[nodejs-github-bot]

CI: https://ci.nodejs.org/job/node-test-pull-request/70893/

[nodejs-github-bot]

Commit Queue failed

- Loading data for nodejs/node/pull/61226
✔ Done loading data for nodejs/node/pull/61226
----------------------------------- PR info ------------------------------------
Title inspector: fix compressed responses (#61226)
⚠ Could not retrieve the email or name of the PR author's from user's GitHub profile!
Branch rubnogueira:main -> nodejs:main
Labels http, inspector, http2, author ready, needs-ci, commit-queue-squash
Commits 5
- inspector: fix compressed responses
- inspector: lint code
- inspector: remove irrelevant code
- inspector: remove irrelevant file
- inspector: fix tests and inline
Committers 1
- Ruben Nogueira <ruben.p.nogueira@gmail.com>
PR-URL: https://github.com/nodejs/node/pull/61226
Fixes: https://github.com/nodejs/node/issues/61222
Reviewed-By: Chengzhong Wu <legendecas@gmail.com>
Reviewed-By: Kohei Ueno <kohei.ueno119@gmail.com>
------------------------------ Generated metadata ------------------------------
PR-URL: https://github.com/nodejs/node/pull/61226
Fixes: https://github.com/nodejs/node/issues/61222
Reviewed-By: Chengzhong Wu <legendecas@gmail.com>
Reviewed-By: Kohei Ueno <kohei.ueno119@gmail.com>
--------------------------------------------------------------------------------
ℹ This PR was created on Tue, 30 Dec 2025 20:14:26 GMT
✔ Approvals: 2
✔ - Chengzhong Wu (@legendecas) (TSC): https://github.com/nodejs/node/pull/61226#pullrequestreview-3660965504
✔ - Kohei Ueno (@cola119): https://github.com/nodejs/node/pull/61226#pullrequestreview-3673245165
✘ Last GitHub CI failed
ℹ Last Full PR CI on 2026-01-19T18:02:47Z: https://ci.nodejs.org/job/node-test-pull-request/70893/
- Querying data for job/node-test-pull-request/70893/
✔ Build data downloaded
✔ Last Jenkins CI successful
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✔ Aborted `git node land` session in /home/runner/work/node/node/.ncu

https://github.com/nodejs/node/actions/runs/21187587953

[legendecas]

Landed in 186c7a9

[aduh95]

This PR introduced a flaky test, too bad #61226 (comment) was resumed despite showing the added test failing.

I've opened a revert in #61502.