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[Desktop] chrome://new-tab-page triggers unproxied requests to Google

See original GitHub issue

Description

Open chrome://new-tab-page triggers requests to Google servers which don’t go through our proxy.

They go through a special URL scheme:

chrome-untrusted://new-tab-page/custom_background_image?url=https%3A%2F%2Flh4.googleusercontent.com%2Fproxy%2FkF...

Steps to Reproduce

Run a local intercepting proxy like mitmproxy: mitmproxy --socks --port 9000
Start Brave in proxy mode: brave-browser-nightly --proxy-server="socks5://localhost:9000"
Open chrome://new-tab-page

Actual result:

The following requests to Google servers are triggered:

https://www.google.com/async/newtab_ogb?hl=en-GB&async=fixed:0
https://www.google.com/async/ddljson?async=ntp:2
https://www.google.com/async/newtab_promos
https://fonts.googleapis.com/css?lang=en-GB&family=Product+Sans|Roboto:400,700
https://www.gstatic.com/og/_/ss/k=og.qtm.1kpmk2jdrun5m.L.W.O/m=qmd,qcwid/excm=qaaw,qabr,qadd,qaid,qalo,qebr,qein,qhaw,qhbr,qhch,qhga,qhid,qhin,qhlo,qhmn,qhpc,qhpr,qhsf,qhtb,qhtt/d=1/ed=1/ct=zgms/rs=AA2YrTvftdZCTQFhW1kDfl4AMFB...
https://www.gstatic.com/images/branding/googlelogo/svg/googlelogo_clr_74x24px.svg
https://www.gstatic.com/og/_/js/k=og.qtm.en_US.SvsPckT-cMA.O/rt=j/m=q_d,qmd,qcwid,qmutsd,qapid,qald/exm=qaaw,qabr,qadd,qaid,qalo,qebr,qein,qhaw,qhbr,qhch,qhga,qhid,qhin,qhlo,qhmn,qhpc,qhpr,qhsf,qhtb,qhtt/d=1/ed=1/rs=AA2YrTuLA...
https://ogs.google.com/widget/app/so?gm2&origin=chrome%3A%2F%2Fnew-tab-page&pid=1&spid=243&hl=en-GB&gm=

Expected result:

These should be proxied.

Reproduces how often:

Always.

Brave version (brave://version info)

Brave	1.12.79 Chromium: 84.0.4147.68 (Official Build) nightly (64-bit)
Revision	e7b7234037639b407e69c5428c891ce018cd6c0d-refs/branch-heads/4147@{#772}
OS	Linux

Issue Analytics

State:
Created 3 years ago
Comments:5 (3 by maintainers)

Top GitHub Comments

3reactions

fmariercommented, Jul 9, 2020

An alternative to proxying these request would be to remove this page from Brave entirely.

1reaction

rebroncommented, Aug 19, 2021

Page is still up. I think there was a typo chrome://new-tag-page vs chrome://new-tab-page

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