ng update: `unable to get local issuer certificate` error during update

[distributedlock]

Versions

Angular CLI: 6.0.0
Node: 10.0.0
OS: win32 x64
Angular: 5.2.10
... animations, common, compiler, compiler-cli, core
... forms, http, language-service, platform-browser
... platform-browser-dynamic, router, service-worker

Package                           Version
-----------------------------------------------------------
@angular-devkit/architect         0.6.0
@angular-devkit/core              0.6.0
@angular-devkit/schematics        0.6.0
@angular/cdk                      5.2.5
@angular/cli                      6.0.0
@angular/material                 5.2.5
@schematics/angular               0.6.0
@schematics/update                0.6.0
rxjs                              5.5.10
typescript                        2.6.2

NPM: 6.0.0
Yarn: 1.6.0

Repro steps

• Run ng update @angular/cli or simply ng update.

Observed behavior

An error occurs with message:

unable to get local issuer certificate

Desired behavior

Expected to update @angular/cli as denoted in instructions to upgrade from 5.2.10 to 6.0.0 on update.angular.io

Mention any other details that might be useful (optional)

Both yarn and npm have strict-ssl set to false in the config. It seems that CLI is not using the config of the package managers when fetching the new dependencies during update.

This happens in a corporate environment when behind a Self Signed Root CA (MITM of all TLS traffic).

[clydin]

Duplicate of #10596

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