- I patched the likely search blank-page cause in [plugin.php](/Users/tyemeclifford/Documents/GH/blog/bl-plugins/search/plugin.php).

What changed:
Removed the enlarged nested search cache fields I had added, which could 
push larger sites into memory/time failures.
Added a self-heal so existing oversized search caches regenerate into 
the smaller format.
Stopped fuzzy matching against full body content; it now only fuzzes 
title/tags/category/description.
Hardened search-term splitting and malformed input handling.

bl-plugins/search/plugin.php

@@ -477,8 +477,14 @@ EOF;
 			$stringToSearch = $this->webhook($webhook, true, false);
 			$stringToSearch = trim($stringToSearch, '/');
 			$stringToSearch = urldecode($stringToSearch);
-			$stringToSearch = preg_replace('/\s+/u', ' ', $stringToSearch);
+			$normalizedWhitespace = preg_replace('/\s+/u', ' ', $stringToSearch);
-			$stringToSearch = trim($stringToSearch);
+			if ($normalizedWhitespace === null) {
+				$normalizedWhitespace = preg_replace('/\s+/', ' ', $stringToSearch);
+			}
+			if ($normalizedWhitespace !== null) {
+				$stringToSearch = $normalizedWhitespace;
+			}
+			$stringToSearch = trim((string) $stringToSearch);
 			if (mb_strlen($stringToSearch, 'UTF-8') > 120) {
 				$stringToSearch = mb_substr($stringToSearch, 0, 120, 'UTF-8');
 			}
@@ -554,7 +560,7 @@ EOF;
 			return $safeText;
 		}
 
-		$words = preg_split('/\s+/u', trim($searchTerm), -1, PREG_SPLIT_NO_EMPTY);
+		$words = $this->splitWords($searchTerm);
 		$words = array_filter($words, function($word) {
 			return mb_strlen($word, 'UTF-8') >= 2;
 		});
@@ -597,7 +603,7 @@ EOF;
 			return '';
 		}
 
-		$words = preg_split('/\s+/u', trim($searchTerm), -1, PREG_SPLIT_NO_EMPTY);
+		$words = $this->splitWords($searchTerm);
 		$words = array_filter($words, function($word) {
 			return mb_strlen($word, 'UTF-8') >= 2;
 		});
@@ -652,6 +658,19 @@ EOF;
 		return trim((string) $plainText);
 	}
 
+	private function splitWords($text)
+	{
+		$words = preg_split('/\s+/u', trim((string) $text), -1, PREG_SPLIT_NO_EMPTY);
+		if (!is_array($words)) {
+			$words = preg_split('/\s+/', trim((string) $text), -1, PREG_SPLIT_NO_EMPTY);
+		}
+		if (!is_array($words)) {
+			return array();
+		}
+
+		return $words;
+	}
+
 	// Generate the cache file
 	// This function is necessary to call it when you create, edit or remove content
 	private function createCache()
@@ -702,8 +721,6 @@ EOF;
 					}
 				}
 			}
-
-			$cache[$pageKey]['search'] = $this->buildSearchFields($cache[$pageKey]);
 		}
 
 		// Generate JSON file with the cache
@@ -749,6 +766,15 @@ EOF;
 			return array();
 		}
 
+		if ($this->cacheContainsStoredSearchFields($cache)) {
+			$this->createCache();
+			$json = file_get_contents($cacheFile);
+			$cache = json_decode($json, true);
+			if (empty($cache) || !is_array($cache)) {
+				return array();
+			}
+		}
+
 		$terms = $this->tokenizeSearchTerm($text);
 		if (empty($terms)) {
 			return array();
@@ -770,6 +796,15 @@ EOF;
 		return array_keys($scores);
 	}
 
+	private function cacheContainsStoredSearchFields($cache)
+	{
+		foreach ($cache as $data) {
+			return is_array($data) && isset($data['search']);
+		}
+
+		return false;
+	}
+
 	private function buildSearchFields($data)
 	{
 		$fields = array(
@@ -838,10 +873,7 @@ EOF;
 	private function tokenizeSearchTerm($text)
 	{
 		$normalized = $this->normalizeSearchText($text);
-		$words = preg_split('/\s+/u', $normalized, -1, PREG_SPLIT_NO_EMPTY);
+		$words = $this->splitWords($normalized);
-		if (!is_array($words)) {
-			return array();
-		}
 
 		$tokens = array();
 		foreach ($words as $word) {
@@ -885,8 +917,7 @@ EOF;
 			$termScore += $this->scoreTermInField($fields['content'], $term, 25);
 
 			if ($termScore === 0) {
-				$termScore += $this->fuzzyTermScore($term, trim($fields['title'] . ' ' . $fields['tags'] . ' ' . $fields['category']), 24);
+				$termScore += $this->fuzzyTermScore($term, trim($fields['title'] . ' ' . $fields['tags'] . ' ' . $fields['category'] . ' ' . $fields['description']), 24);
-				$termScore += $this->fuzzyTermScore($term, $fields['content'], 10);
 			}
 
 			if ($termScore > 0) {
@@ -944,10 +975,7 @@ EOF;
 			return 0;
 		}
 
-		$words = preg_split('/\s+/u', $field, -1, PREG_SPLIT_NO_EMPTY);
+		$words = $this->splitWords($field);
-		if (!is_array($words)) {
-			return 0;
-		}
 
 		$bestScore = 0;
 		$checked = array();