rega's gates:post run reported this gate failing its mapbox half — "NO map
constructed", 21 api.mapbox.com requests, 0 bars. Two theories followed and both
were wrong, mine included. rega then MEASURED the leaf on both token rungs: 1
Mapbox map, 2 GL canvases, 3 visible search inputs, 0 page errors, via the host
global AND via ?tk=. The product was never at fault. This gate's detection was.
THE MAP PROBE WALKED THE DOM FOR A CANVAS. That is a chain of assumptions — every
shadow root open, the canvas carrying the class I expected, existing by the time
I looked — and when any link breaks the probe reports ABSENCE, which is
indistinguishable from a broken product. It now hooks the engine's own
Map.prototype.setStyle through both globals, which cannot be wrong about the DOM
because it never looks at it. Both globals, because the leaf loads only the
engine its provider asks for; the property is defined with a setter so the hook
survives the engine script loading afterwards, and the whole thing is wrapped so
a hook can never be the reason a page fails. The canvas walk stays as a second
opinion, so an engine that stops routing through setStyle degrades to the old
behaviour rather than accusing the product again.
THE BAR SELECTOR MATCHED ONE CLASS. input.mapboxgl-ctrl-geocoder--input, and
nothing else — so it reported 0 bars on a page carrying three visible search
inputs. Whether the miss was the class or the shadow walk cannot be told from
here, and that is exactly the problem: a selector narrow enough that one wrong
assumption yields ZERO will accuse the product of being broken when it is only
wrong about a name. It now counts what a reader would call a search box.
Both probes are borrowed from rega's tokrung.mjs, which measured this leaf
correctly while this gate did not. Where a positive control exists that measures
correctly, copy the control.
IT STILL MEASURES BOTH TOKEN RUNGS, per studio. The ?tk= theory turned out to be
wrong, but the two cases are worth keeping on their own merit: the host global is
the rung an embedding partner reaches for, and if the two ever diverge the gate
now says which one failed instead of leaving a channel switch to look like a fix.
Rejected api.mapbox.com responses are recorded too, so "requests but no map" can
be told apart from a refused key — a 401 says the key, not the code.
THE LESSON, recorded in the header because this is the second time in two days
that a probe of mine accused a working product: a measurement that yields ZERO
when its own assumption is wrong will always blame the thing it is measuring.
Source only; this commit edits one gate and changes no product code. I cannot run
it — Playwright is rega's.
4f3a954b9a