diff --git a/dist/add-ons/webcachemgr/src/Panel/ControlPanel.php b/dist/add-ons/webcachemgr/src/Panel/ControlPanel.php
index 13c5521a1..f9b53305c 100644
--- a/dist/add-ons/webcachemgr/src/Panel/ControlPanel.php
+++ b/dist/add-ons/webcachemgr/src/Panel/ControlPanel.php
@@ -34,7 +34,7 @@ abstract class ControlPanel
     /**
      * @var string
      */
-    const PANEL_API_VERSION = '1.9.7';
+    const PANEL_API_VERSION = '1.9.8';
 
     /**
      * @since 1.9
@@ -816,6 +816,7 @@ public static function meetsMinAPIVerRequirement()
     public static function checkPanelAPICompatibility( $panelAPIVer )
     {
         $supportedAPIVers = array (
+            '1.9.8',
             '1.9.7',
             '1.9.6.1',
             '1.9.6',
diff --git a/dist/add-ons/webcachemgr/src/WPCaller.php b/dist/add-ons/webcachemgr/src/WPCaller.php
index ba8e13db3..2bbe2c1c7 100644
--- a/dist/add-ons/webcachemgr/src/WPCaller.php
+++ b/dist/add-ons/webcachemgr/src/WPCaller.php
@@ -1136,6 +1136,85 @@ public function massDashDisable( $extraArgs )
         return $ret;
     }
 
+    /**
+     * Set 'REQUEST_URI' global server and environment variables.
+     *
+     * @since 1.9.8
+     *
+     * @param string  $key
+     * @param mixed   $val
+     */
+    private function setEnvVar( $key, $val )
+    {
+        $key = 'REQUEST_URI';
+
+        $_SERVER[$key] = $val;
+        putenv("{$key}={$val}");
+    }
+
+    /**
+     * Checks if the current WordPress installation is a multisite install and
+     * does some pre-load setup if so.
+     *
+     * Patterns and multisite check logic based on WordPress function
+     * is_multisite().
+     *
+     * @since 1.9.8
+     *
+     * @return boolean
+     * @throws LSCMException
+     */
+    private function isMultisite()
+    {
+        $isMultiSite = false;
+
+        $pattern1 = '/define\(\s*[\'"]MULTISITE[\'"]\s*,[^;]*;/';
+        $pattern2 = '/define\(\s*[\'"]MULTISITE[\'"]\s*,\s*true\s*\)\s*;/';
+        $pattern3 = '/define\(\s*[\'"]SUBDOMAIN_INSTALL[\'"]\s*,[^;]*;/';
+        $pattern4 = '/define\(\s*[\'"]VHOST[\'"]\s*,[^;]*;/';
+        $pattern5 = '/define\(\s*[\'"]SUNRISE[\'"]\s*,[^;]*;/';
+
+        $config_content =
+                file_get_contents($this->currInstall->getWpConfigFile());
+
+        if ( preg_match($pattern1, $config_content, $m1)
+                && preg_match($pattern2, $m1[0]) ) {
+
+            $isMultiSite = true;
+        }
+        elseif ( preg_match($pattern3, $config_content)
+                || preg_match($pattern4, $config_content)
+                || preg_match($pattern5, $config_content) ) {
+
+            $isMultiSite = true;
+        }
+
+        if ( $isMultiSite ) {
+
+            if ( !preg_match('/define\(\s*[\'"]DOMAIN_CURRENT_SITE[\'"]\s*,\s*[\'"](.+)[\'"]\s*\)\s*;/',
+                    $config_content, $m2) ) {
+
+                throw new LSCMException(
+                        'Cannot find DOMAIN_CURRENT_SITE with MULTISITE defined.');
+            }
+
+            $this->currInstall->setServerName($m2[1]);
+
+            if ( !preg_match('/define\(\s*[\'"]PATH_CURRENT_SITE[\'"]\s*,\s*[\'"](.+)[\'"]\s*\)\s*;/',
+                    $config_content, $m3) ) {
+
+                throw new LSCMException(
+                        'Cannot find PATH_CURRENT_SITE with MULTISITE defined.');
+            }
+
+            $this->setEnvVar('REQUEST_URI', $m3[1]);
+
+            define('WP_NETWORK_ADMIN', true);
+        }
+
+        return $isMultiSite;
+    }
+
     private function initWp()
     {
         /**
@@ -1174,36 +1253,10 @@ private function initWp()
          */
         $_SERVER['SCRIPT_FILENAME'] = "{$wpPath}/wp-admin/plugins.php";
 
-        $config_content =
-                file_get_contents($this->currInstall->getWpConfigFile());
-        $uri = '';
-
-        if ( preg_match('/define\(\s*[\'"]MULTISITE[\'"]\s*,\s*true\s*\)\s*;/', $config_content) ) {
-
-            if ( !preg_match('/define\(\s*[\'"]DOMAIN_CURRENT_SITE[\'"]\s*,\s*[\'"](.+)[\'"]\s*\)\s*;/',
-                    $config_content, $m) ) {
-
-                throw new LSCMException(
-                'Cannot find DOMAIN_CURRENT_SITE with MULTISITE defined.');
-            }
-
-            $this->currInstall->setServerName($m[1]);
-
-            if ( !preg_match('/define\(\s*[\'"]PATH_CURRENT_SITE[\'"]\s*,\s*[\'"](.+)[\'"]\s*\)\s*;/',
-                    $config_content, $m2) ) {
-
-                throw new LSCMException(
-                'Cannot find PATH_CURRENT_SITE with MULTISITE defined.');
-            }
-
-            $uri = $m2[1];
-
-            define('WP_NETWORK_ADMIN', true);
+        if ( ! $this->isMultisite() ) {
+            $this->setEnvVar('REQUEST_URI', '');
         }
 
-        $_SERVER['REQUEST_URI'] = $uri;
-        putenv("REQUEST_URI={$uri}");
-
         /**
          * Set for LSCWP v1.1.5.1+ plugin logic.
          */
@@ -1212,23 +1265,20 @@ private function initWp()
             /**
              * For enable/disable.
              */
-            $_SERVER['DOCUMENT_ROOT'] = $docRoot;
-            putenv("DOCUMENT_ROOT={$docRoot}");
+            $this->setEnvVar('DOCUMENT_ROOT', $docRoot);
         }
 
-        if ( $serverName = $this->currInstall->getServerName() ) {
+        $serverName = $this->currInstall->getServerName();
 
-            /**
-             * For security plugins.
-             */
-            $_SERVER['HTTP_HOST'] = $serverName;
-            putenv("HTTP_HOST={$serverName}");
-        }
-        else {
-            $_SERVER['HTTP_HOST'] = self::LSCWP_HTTP_HOST_TEST;
-            putenv('HTTP_HOST=' . self::LSCWP_HTTP_HOST_TEST);
+        if ( empty($serverName) ) {
+            $serverName = self::LSCWP_HTTP_HOST_TEST;
         }
 
+        /**
+         * For security plugins.
+         */
+        $this->setEnvVar('HTTP_HOST', $serverName);
+
         /**
          * Version specific includes may fail on RC releases.
          */
diff --git a/src/main/lshttpdmain.cpp b/src/main/lshttpdmain.cpp
index 6151da7a0..864b68362 100644
--- a/src/main/lshttpdmain.cpp
+++ b/src/main/lshttpdmain.cpp
@@ -81,7 +81,7 @@
 /***
  * Do not change the below format, it will be set correctly while packing the code
  */
-#define BUILDTIME  " (built: Mon Feb 10 19:58:51 UTC 2020)"
+#define BUILDTIME  " (built: Thu Feb 13 15:07:51 UTC 2020)"
 
 #define GlobalServerSessionHooks (LsiApiHooks::getServerSessionHooks())
 
diff --git a/src/spdy/h2stream.cpp b/src/spdy/h2stream.cpp
index 0306176ce..5709b25cd 100644
--- a/src/spdy/h2stream.cpp
+++ b/src/spdy/h2stream.cpp
@@ -192,7 +192,7 @@ void H2Stream::continueRead()
 {
     LS_DBG_L(this, "H2Stream::continueRead()");
     setFlag(HIO_FLAG_WANT_READ, 1);
-    if (m_bufIn.size() > 0)
+    if (getHandler() && m_bufIn.size() > 0)
         getHandler()->onReadEx();
 }
 
@@ -210,7 +210,7 @@ void H2Stream:: continueWrite()
 
 int H2Stream::onTimer()
 {
-    if (getState() == HIOS_CONNECTED)
+    if (getHandler() && getState() == HIOS_CONNECTED)
         return getHandler()->onTimerEx();
     return 0;
 }