Hugo watch (-w) without server injects livereload.js that is unreachable

[istr]

What version of Hugo are you using (hugo version)?

$ hugo version
hugo v0.112.6-2ca0fcc4485c74859382ffab4abf8610cdd3771a+extended linux/amd64 BuildDate=2023-06-01T09:03:29Z VendorInfo=gohugoio

Does this issue reproduce with the latest release?

Yes

Scenario

Run hugo -w (not in server mode) along with caddy for local testing to overcome the current limitation that hugo server does not yet provide HTTPS (see #4883).

Observed behavior

When running hugo in build mode with the -w option, but without server, the livereload script

<script src="/livereload.js?mindelay=10&amp;v=2&amp;port=&amp;path=livereload" data-no-instant defer></script>

is injected anyway. However, this is not usable since hugo -w does not expose it when not in server mode.
The --liveReloadPort int and --disableLiveReload options are only available for hugo server but not for hugo -w.

Expected behavior

When running hugo -w the livereload script is not injected.

Alternative behavior

When running hugo -w the livereload function behaves the same as in server mode but the server only serves the livereload hook:

• hugo -w livereload enabled, script injected, server started for livereload only
• hugo -w --disableLiveReload no script injection, no livereload listener
• hugo -w --liveReloadPort int script injection, server started for livereload only, connect to other port

[jmooring]

Confirmed.

This worked as desired in v0.111.3. It stopped working as desired in v0.112.0.

[jmooring]

You may be able to use this instead:

hugo server --renderToDisk --disableLiveReload --baseURL "https://example.org/"

[github-actions]

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