Merge pull request #1082 from IBMa/dev-1081

change aria_child_valid rule level to recommendation

Author: ErickRenteria

accessibility-checker-engine/help-v4/en-US/aria_child_valid.html

@@ -94,6 +94,12 @@ <h3 id="ruleMessage"></h3>
 * [ARIA authoring practices guide](https://www.w3.org/WAI/ARIA/apg/)
 * [ARIA specification - Required Owned Elements](https://w3c.github.io/aria/#mustContain)
 
+**Note**: this rule's level was lowered from a "Violation" to a "Recommendation" temporarily.
+In some cases, such as `listitems` only being allowed inside `lists`, 
+assistive technology works around the strict specification and correctly renders the child elements.
+An investigation of the AIRA specification is on-going to determine the strictness of the parent-child interpretation.
+In most cases this rule should be interpreted as a "Violation" and remediated as explained above. 
+
 ### Who does this affect?
 
 * People using a screen reader, including blind, low vision and neurodivergent people

accessibility-checker-engine/src/v4/rules/aria_child_valid.ts

@@ -41,7 +41,7 @@ export let aria_child_valid: Rule = {
     rulesets: [{
         "id": ["IBM_Accessibility", "WCAG_2_1", "WCAG_2_0"],
         "num": ["4.1.2"],
-        "level": eRulePolicy.VIOLATION,
+        "level": eRulePolicy.RECOMMENDATION,
         "toolkitLevel": eToolkitLevel.LEVEL_ONE
     }],
     // TODO: ACT: Verify mapping