2 files changed, 13 insertions, 6 deletions

diff --git a/server/lib/client-html.ts b/server/lib/client-html.ts
index 516827a05..ccc963514 100644
--- a/server/lib/client-html.ts
+++ b/server/lib/client-html.ts
@@ -92,6 +92,7 @@ export class ClientHtml {
     let html = buffer.toString()
 
     html = ClientHtml.addCustomCSS(html)
+    html = ClientHtml.addPluginCSS(html)
 
     ClientHtml.htmlCache[ path ] = html
 
@@ -138,11 +139,17 @@ export class ClientHtml {
   }
 
   private static addCustomCSS (htmlStringPage: string) {
-    const styleTag = '<style class="custom-css-style">' + CONFIG.INSTANCE.CUSTOMIZATIONS.CSS + '</style>'
+    const styleTag = `<style class="custom-css-style">${CONFIG.INSTANCE.CUSTOMIZATIONS.CSS}</style>`
 
     return htmlStringPage.replace(CUSTOM_HTML_TAG_COMMENTS.CUSTOM_CSS, styleTag)
   }
 
+  private static addPluginCSS (htmlStringPage: string) {
+    const linkTag = `<link rel="stylesheet" href="/plugins/global.css" />`
+
+    return htmlStringPage.replace('</head>', linkTag + '</head>')
+  }
+
   private static addVideoOpenGraphAndOEmbedTags (htmlStringPage: string, video: VideoModel) {
     const previewUrl = WEBSERVER.URL + video.getPreviewStaticPath()
     const videoUrl = WEBSERVER.URL + video.getWatchStaticPath()
diff --git a/server/lib/plugins/theme-utils.ts b/server/lib/plugins/theme-utils.ts
index 066339e65..76c671f1c 100644
--- a/server/lib/plugins/theme-utils.ts
+++ b/server/lib/plugins/theme-utils.ts
@@ -1,18 +1,18 @@
-import { DEFAULT_THEME } from '../../initializers/constants'
+import { DEFAULT_THEME_NAME, DEFAULT_USER_THEME_NAME } from '../../initializers/constants'
 import { PluginManager } from './plugin-manager'
 import { CONFIG } from '../../initializers/config'
 
-function getThemeOrDefault (name: string) {
+function getThemeOrDefault (name: string, defaultTheme: string) {
   if (isThemeRegistered(name)) return name
 
   // Fallback to admin default theme
-  if (name !== CONFIG.THEME.DEFAULT) return getThemeOrDefault(CONFIG.THEME.DEFAULT)
+  if (name !== CONFIG.THEME.DEFAULT) return getThemeOrDefault(CONFIG.THEME.DEFAULT, DEFAULT_THEME_NAME)
 
-  return DEFAULT_THEME
+  return defaultTheme
 }
 
 function isThemeRegistered (name: string) {
-  if (name === DEFAULT_THEME) return true
+  if (name === DEFAULT_THEME_NAME || name === DEFAULT_USER_THEME_NAME) return true
 
   return !!PluginManager.Instance.getRegisteredThemes()
                         .find(r => r.name === name)