fix small iframe bug

build/js/IFrame.js

@@ -303,7 +303,7 @@ class IFrame {
       $(SELECTOR_CONTENT_WRAPPER).height(windowHeight)
       $(SELECTOR_CONTENT_IFRAME).height(windowHeight)
     } else {
-      const contentWrapperHeight = parseFloat($(SELECTOR_CONTENT_WRAPPER).css('min-height'))
+      const contentWrapperHeight = parseFloat($(SELECTOR_CONTENT_WRAPPER).css('height'))
       const navbarHeight = $(SELECTOR_TAB_NAV).outerHeight()
       if (tabEmpty == true) {
         setTimeout(() => {

build/scss/pages/_iframe.scss

@@ -59,6 +59,7 @@ body.iframe-mode-fullscreen {
       border: 0;
       width: 100%;
       height: 100%;
+      margin-bottom: -8px;
 
       .content-wrapper {
         padding-bottom: 0 !important;