Update Frame resizing logic.

layouts/scripts/frame-index.js

@@ -8,7 +8,7 @@ function setupResizeListener() {
   const RESIZE_CODE = 'resize:';
 
   const resizeObserver = new ResizeObserver(entries => {
-    const height = document.body.offsetHeight;
+    const height = document.body.scrollHeight;
     window.parent.postMessage(RESIZE_CODE + JSON.stringify({height}), '*');
   })
 

layouts/styles/_page--preview.scss

@@ -8,6 +8,7 @@
   display: block;
   margin-right: auto;
   margin-left: auto;
+  min-height: 100%;
 
   --top_spacing: 0px;
   --breakpoint_top_spacing: 30px;

layouts/styles/page--main.css

@@ -116,6 +116,7 @@ body {
   display: block;
   margin-right: auto;
   margin-left: auto;
+  min-height: 100%;
   --top_spacing: 0px;
   --breakpoint_top_spacing: 30px;
   margin-top: var(--top_spacing);

layouts/styles/page--main.css.map

@@ -1 +1 @@
-{"version":3,"sourceRoot":"","sources":["page--main.scss","_buttons.scss","_overlay.scss","_page--preview.scss"],"names":[],"mappings":"AAAA;EACE;EACA;;;AAGF;EACE;EACA;EAEA;;;ACTF;EACE;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;;AAEA;EACE;EACA;;AAGF;EACE;EACA;;;ACtBJ;EACE;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;;;AFIF;EACE;EACA;EAEA;EACA;EACA;EAEA;EACA;EACA;EAEA;EACA;;AAEA;EACE;EACA;EACA;EACA;;AAEA;EACE;;AAEA;EAHF;IAII;;;AAGF;EACE;EACA;EACA;EACA;EACA;EACA;EACA;;AAGF;EACE;EACA;EACA;EACA;EACA;EACA;EACA;;AAKF;EADF;IAEI;;;AAKN;EAEE;EACA;EACA;EACA;;AAGF;EACE;;;AGhFJ;EACE;EACA;EACA;;;AAGF;EACE;EACA;EACA;EAEA;EACA;EAEA;EACA;EACA;EAEA;EACA;EAEA;;AAEA;EACE;EAEA;EACA;;;AH4DJ;EACE;EACA;EACA;EAEA;EACA;EACA;EACA;EACA;EAEA;EACA;EACA;EACA;EACA;EACA;EACA;EACA","file":"page--main.css"}
+{"version":3,"sourceRoot":"","sources":["page--main.scss","_buttons.scss","_overlay.scss","_page--preview.scss"],"names":[],"mappings":"AAAA;EACE;EACA;;;AAGF;EACE;EACA;EAEA;;;ACTF;EACE;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;;AAEA;EACE;EACA;;AAGF;EACE;EACA;;;ACtBJ;EACE;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA;;;AFIF;EACE;EACA;EAEA;EACA;EACA;EAEA;EACA;EACA;EAEA;EACA;;AAEA;EACE;EACA;EACA;EACA;;AAEA;EACE;;AAEA;EAHF;IAII;;;AAGF;EACE;EACA;EACA;EACA;EACA;EACA;EACA;;AAGF;EACE;EACA;EACA;EACA;EACA;EACA;EACA;;AAKF;EADF;IAEI;;;AAKN;EAEE;EACA;EACA;EACA;;AAGF;EACE;;;AGhFJ;EACE;EACA;EACA;;;AAGF;EACE;EACA;EACA;EACA;EAEA;EACA;EAEA;EACA;EACA;EAEA;EACA;EAEA;;AAEA;EACE;EAEA;EACA;;;AH2DJ;EACE;EACA;EACA;EAEA;EACA;EACA;EACA;EACA;EAEA;EACA;EACA;EACA;EACA;EACA;EACA;EACA","file":"page--main.css"}