test: certified participants data

frontend/src/pages/CertifiedParticipants.vue

@@ -204,10 +204,12 @@ const setQueryParams = () => {
 	let filterKeys = {
 		category: currentCategory.value,
 		name: nameFilter.value,
+		'open-to-opportunities': openToOpportunities.value,
+		hiring: hiring.value,
 	}
 
 	Object.keys(filterKeys).forEach((key) => {
-		if (filterKeys[key] && filterKeys[key].trim() !== '') {
+		if (filterKeys[key] && hasValue(filterKeys[key])) {
 			queries.set(key, filterKeys[key])
 		} else {
 			queries.delete(key)
@@ -220,6 +222,13 @@ const setQueryParams = () => {
 	)
 }
 
+const hasValue = (value) => {
+	if (typeof value === 'string') {
+		return value.trim() !== ''
+	}
+	return true
+}
+
 const setFiltersFromQuery = () => {
 	let queries = new URLSearchParams(location.search)
 	nameFilter.value = queries.get('name') || ''