Live Reload not working with --basehref

[mucbits]

🐞 Bug report

Command (mark with an x)

• new
• build
• serve
• test
• e2e
• generate
• add
• lint
• update
• xi18n
• run
• config
• help
• version
• doc

Is this a regression?

Yes, the previous version in which this bug was not present was: 0.803.13

Description

Live Reload stopped working after this change:
5260bbb#diff-6c0b312b8bd33db747e50549a66f7ab1

https://localhost:xxxx/admin/sockjs-node/info returns 404

while https://localhost:xxxx/admin/admin/sockjs-node/info exists.

🔬 Minimal Reproduction

ng serve app --base-href /admin/ --deploy-url /admin/

🔥 Exception or Error

https://localhost:xxxx/admin/sockjs-node/info returns 404

[clydin]

I am unable to replicate the issue. Tried with a new project using the latest version of 8.x (8.3.19)

npx @angular/cli@8 new livereload-basehref
cd livereload-basehref
ng serve --base-href /admin/ --deploy-url /admin/

Is this reproducible for you in a new project?