feat(client): expose page experiment assignments via window.ILC.getEx… - #714
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…periments()
Apps that ILC does not mount for a route (embedded apps, parcels, wrapper
apps, other page scripts) never receive appProps.experiments, so they fell
back to the baseline and rendered a different variant than the rest of the
page.
window.ILC.getExperiments() returns the experiment map the server resolved
for the current document: the same ilc-state value ClientRouter merges into
route apps' appProps.experiments. Each call returns a fresh frozen copy, or a
frozen {} when there are no assignments. The value is a page snapshot and
changes only on the next full page load; no change event is added.
The change is additive: no existing window.ILC method, SSR behaviour or
appProps.experiments contract changes. docs/ab-testing.md describes the
contract for apps that don't receive appProps.
Coverage ReportIlc/serverCommit SHA:a4a10b39f33f892300af0707f2fb50010ffb6626 Test coverage results 🧪File details
Ilc/clientCommit SHA:a4a10b39f33f892300af0707f2fb50010ffb6626 Test coverage results 🧪File details
RegistryCommit SHA:a4a10b39f33f892300af0707f2fb50010ffb6626 Test coverage results 🧪File details
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m2broth
marked this pull request as ready for review
September 28, 2026 15:43
m2broth
requested review from
stas-nc and
wRLSS
and removed request for
wRLSS
September 28, 2026 15:43
stas-nc
approved these changes
Sep 29, 2026
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Apps that ILC does not mount for a route (embedded apps, parcels, wrapper apps, other page scripts) never receive appProps.experiments, so they fell back to the baseline and rendered a different variant than the rest of the page.
window.ILC.getExperiments() returns the experiment map the server resolved for the current document: the same ilc-state value ClientRouter merges into route apps' appProps.experiments. Each call returns a fresh frozen copy, or a frozen {} when there are no assignments. The value is a page snapshot and changes only on the next full page load; no change event is added.
The change is additive: no existing window.ILC method, SSR behaviour or appProps.experiments contract changes. docs/ab-testing.md describes the contract for apps that don't receive appProps.