docs/knowledge-graph/vault-wml-3/scr-rows/wml-c-38.md
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Relationships
belongs-to→ [[source-families/wml|wml]]planned-by→ [[work-items/WML-304|WML-304]]planned-by→ [[work-items/WML-306|WML-306]]refines← [[clauses/WML-CL-HISTORY-POST-REPLAY|WML-CL-HISTORY-POST-REPLAY]]refines← [[clauses/WML-CL-HISTORY-PREV-POP|WML-CL-HISTORY-PREV-POP]]refines← [[clauses/WML-CL-PREV-ASSIGNMENT-ORDER|WML-CL-PREV-ASSIGNMENT-ORDER]]refines← [[clauses/WML-CL-PREV-EMPTY-HISTORY|WML-CL-PREV-EMPTY-HISTORY]]refines← [[clauses/WML-CL-PREV-ENTRY-EVENT-PRECEDENCE|WML-CL-PREV-ENTRY-EVENT-PRECEDENCE]]refines← [[clauses/WML-CL-TASK-FAILURE-ATOMICITY|WML-CL-TASK-FAILURE-ATOMICITY]]refines← [[clauses/WML-CL-VARIABLE-TASK-SNAPSHOT|WML-CL-VARIABLE-TASK-SNAPSHOT]]sourced-from→ [[source-documents/WAP-191_104-WML|WAP-191_104-WML]]
Data
{
"family": "wml",
"ordinal": 38,
"actor": "wml-user-agent",
"referencedSection": "9.5.2",
"specificationStatus": "mandatory",
"dependencyExpression": {
"type": "none",
"scrIds": []
},
"sourceAnchor": {
"documentId": "WAP-191_104-WML",
"staticConformanceSection": "15.1.5",
"changeSection": null
},
"disposition": {
"strict": "required-for-claimed-actor",
"classCProfile": "required-by-class-c-client-mcf",
"enhancementMayReplaceStrictBehavior": false
},
"reviewState": "source-extracted-class-c-applied-mapping-provisional",
"implementationStatus": "implemented",
"evidenceState": "direct-test-linked",
"assessmentNote": "Prev pops request-shaped card history, executes variable assignments and backward-entry behavior, and replays typed POST values when the prior deck must be fetched again.",
"implementationEvidence": [
{
"path": "engine-wasm/engine/src/engine_runtime_internal/navigation.rs",
"symbol": "CardTaskAction::Prev"
},
{
"path": "browser/frontend/src/app/navigation-state.ts",
"symbol": "navigateBackWithFallback"
}
],
"testEvidence": [
{
"path": "engine-wasm/engine/src/engine_tests/actions_timers.rs",
"test": "enter_accept_prev_action_navigates_back_when_history_exists",
"command": "cd engine-wasm/engine && cargo test enter_accept_prev_action_navigates_back_when_history_exists"
},
{
"path": "browser/frontend/src/app/navigation-state.history.test.ts",
"test": "replays typed POST values when history back must refetch the prior deck",
"command": "pnpm --dir browser/frontend test -- src/app/navigation-state.history.test.ts src/session-history.test.ts"
}
],
"ownerLayers": [
"engine-wasm",
"browser"
],
"requirementIds": [
"RQ-RMK-002"
],
"matrixWorkItems": [
"WML-304",
"WML-306"
],
"workItems": [
"R0-01",
"R0-02",
"WML-304",
"WML-306"
],
"source": "spec-processing/source-manifests/wap-1.2.1-wml-scr.json"
}