feat(analytics-browser): add config attribution.excludeInternalReferrers#1548
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feat(analytics-browser): add config attribution.excludeInternalReferrers#1548daniel-graham-amplitude wants to merge 28 commits intomainfrom
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Thanks Dan, LGTM! Just one nit
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Summary
Adds a new configuration to
attributioncalledexcludeInternalReferrersthattrueorexcludeInternalReferrers.condition === 'always', do not track campaign information if document.referrer and location.hostname are on the same domain (ie: block all internal referrers)excludeInternalReferrers.condition === 'ifEmptyCampaign', do not track campaign information if document.referrer and location.hostname are on the same domain and the campaign is empty (no UTM parameters or click ID's)Why: this is so that customers can easily safeguard against unwanted internal referrers.
Checklist
Note
Medium Risk
Changes campaign attribution decision logic and domain parsing, which can alter when
$identifycampaign events are emitted; mistakes could suppress or misattribute marketing campaigns across subdomains/TLDs.Overview
Adds
attribution.excludeInternalReferrersto suppress campaign updates when the referrer is on the same effective domain as the current page (optionally only when campaign params are otherwise empty).This threads
cookieOptions.domaininto attribution evaluation, adds domain/subdomain parsing helpers (including support for common 2-level TLDs), validates/logs invalid config values, and expands tests/exports (includingEXCLUDE_INTERNAL_REFERRERS_CONDITIONS) plus a small test-server config/snippet version bump.Written by Cursor Bugbot for commit 1ae14a2. This will update automatically on new commits. Configure here.