What causes "Note: could not remove live script tag ({first}) " in pbakaus/impeccable?

Open the HTML file the live session was serving and manually remove the injected live script tag (search for the live/inject marker comment or script).

pbakaus/impeccable · warning

Note: could not remove live script tag ({first})

Error message

Note: could not remove live script tag ({first})

What it means

During `impeccable live` shutdown (stop, called by run), the tool tries to remove the injected live script tag by re-running `impeccable live-inject --remove`. If that command fails, it prints the first line of the failing command's output as a non-fatal 'Note:' warning. The live session still ends; the injected script tag may be left behind in the HTML file.

Source

Thrown at crates/live/src/live_server.rs:492

                    if j.get("removed") == Some(&Value::Bool(true)) {
                        let file = j
                            .get("file")
                            .map(js_display)
                            .unwrap_or_else(|| "undefined".to_string());
                        println(io, &format!("Removed live script tag from {}.", file));
                    }
                }
            }
        } else {
            let detail = if !err.trim().is_empty() {
                err.trim().to_string()
            } else if !out.trim().is_empty() {
                out.trim().to_string()
            } else {
                format!("Command failed: impeccable live-inject --remove")
            };
            let first = detail.split('\n').next().unwrap_or("");
            io.err(&format!(
                "Note: could not remove live script tag ({})\n",
                first
            ));
        }
    }
    0
}

/// JS: shutdown()
fn shutdown(shared: &Shared) {
    let mut st = lock(shared);
    if st.cleaned_up {
        return;
    }
    st.cleaned_up = true;
    remove_all_svelte_component_sessions(&st.cwd);
    remove_live_server_info(&st.cwd, &st.env);
    st.lease_timer_gen += 1;

View on GitHub (pinned to 2bc2879276)

Solutions

Open the HTML file the live session was serving and manually remove the injected live script tag (search for the live/inject marker comment or script).
Re-run `impeccable live` on the same target and stop it cleanly so removal succeeds.
Check the file still exists at the original path and is writable (`ls`, permissions) before restarting live mode.
If a dev server or watcher rewrote the file, stop it, re-add/remove the tag, then restart live.

Example fix

// The injected tag typically looks like:
// <script src="http://localhost:PORT/impeccable-live.js"></script>
// before (leftover after failed auto-removal)
<script src="http://localhost:7d34/impeccable-live.js"></script>
// after (manually deleted)

Defensive patterns

Strategy: fallback

Validate before calling

test -f index.html && grep -q 'impeccable-live' index.html && echo 'tag present, removable' || echo 'file missing or tag absent'

Prevention

Don't delete or rename the injected HTML file while a live session is running.
Avoid git branch switches/checkouts that touch the target file during a live session.
Grep for the live script tag after stopping a session and remove it manually if the note appeared.
Keep dev-server watchers from rewriting the file while live mode is active.

When it happens

Trigger: Running `impeccable live` and stopping it (Ctrl-C or shutdown) when the `live-inject --remove` subcommand exits non-zero or emits an error — e.g. the target HTML file was moved, renamed, deleted, or edited so the marker no longer matches while the session ran.

Common situations: Developer deletes or restructures the entry HTML during a live session; a git checkout/branch switch replaces the injected file; the file is locked by another process (editor, dev server) so the rewrite fails; the project root changed mid-session.

Related errors

AI-assisted analysis of pbakaus/impeccable@2bc2879276 (2026-09-08). Data as JSON: /api/errors/4b4737d33b6d9b81. Report an issue: GitHub.