Reported: logged in, go to an edit page, then press Home — nothing happens.
Root cause (browser-DOM trace): a boosted nav home→post morphs a home footer <a> into the
post's "edit" link (morph reuses nodes positionally). morph-node's sync-attrs then STRIPS any
attribute the old node has but the SERVER node lacks — which removes the boost's
client-injected sx-swap="innerHTML" (the server never sends it). With sx-swap gone the swap
defaults to outerHTML, so clicking edit REPLACES #content (the <div id=content>) with the edit
fragment's <div> (no id) — DOM trace: "sx-boost children [NAV, DIV#content]" → "[NAV, DIV]".
#content is destroyed, so every later boosted nav (Home) fetches but has no swap target
("post-swap: root=nil") → nothing updates.
Fix: sync-attrs no longer removes the boost's injected navigation attributes (sx-target /
sx-swap / sx-push-url / sx-get / sx-select) when the new (server) node lacks them — they're
identical across all boosted links, so a reused node keeps sx-swap="innerHTML" and the swap
morphs #content's children instead of replacing #content. Recompiled the web stack. Pairs
with a511b21d (fresh href) + 88f8b427 (SX-Redirect) — three facets of the morph-node-reuse
problem (stale href, lost swap attr, guarded-redirect clobber).
TEST-FIRST: added a 3rd boost-nav.spec.js case (LOGGED IN: home→post→edit, assert #content
survives + Home works). Reproduced RED via DOM traces (#content count 0), GREEN after — on the
ephemeral server AND live. No regressions: picker 3/3 + block-editor 1/1.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
giles
7bec86289c