diff --git a/package.json b/package.json
index 5bbccb8..3ede266 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "react-tiny-popover",
-  "version": "8.1.0",
+  "version": "8.1.1",
   "description": "A simple and highly customizable popover react higher order component with no other dependencies!",
   "keywords": [
     "react",
@@ -20,7 +20,7 @@
   ],
   "license": "MIT",
   "author": "Alex Katz",
-  "main": "dist/Popover.js",
+  "main": "src/Popover.tsx",
   "types": "dist/index.d.ts",
   "scripts": {
     "build": "tsc -p . && pnpm run copy-types",
diff --git a/src/Popover.tsx b/src/Popover.tsx
index 89f893d..0a45a2a 100644
--- a/src/Popover.tsx
+++ b/src/Popover.tsx
@@ -13,6 +13,7 @@ import { PopoverPosition, PopoverProps, PopoverState } from '.';
 import { EMPTY_RECT, rectsAreEqual } from './util';
 import { usePopover } from './usePopover';
 import { useMemoizedArray } from './useMemoizedArray';
+import { useHandlePrevValues } from './useHandlePrevValues';
 export { useArrowContainer } from './useArrowContainer';
 export { ArrowContainer } from './ArrowContainer';
 export { usePopover };
@@ -45,10 +46,14 @@ const PopoverInternal = forwardRef(
       Array.isArray(externalPositions) ? externalPositions : [externalPositions],
     );
 
-    // TODO: factor prevs out into a custom prevs hook
-    const prevIsOpen = useRef(false);
-    const prevPositions = useRef<PopoverPosition[] | undefined>();
-    const prevReposition = useRef(reposition);
+    const { prev, updatePrevValues } = useHandlePrevValues({
+      positions,
+      reposition,
+      transformMode,
+      transform,
+      boundaryElement,
+      boundaryInset,
+    });
 
     const childRef = useRef<HTMLElement | undefined>();
 
@@ -102,26 +107,22 @@ const PopoverInternal = forwardRef(
               popoverRect.height !== popoverState.popoverRect.height ||
               popoverState.padding !== padding ||
               popoverState.align !== align ||
-              positions !== prevPositions.current ||
-              reposition !== prevReposition.current)
+              positions !== prev.positions ||
+              reposition !== prev.reposition ||
+              transformMode !== prev.transformMode ||
+              transform !== prev.transform ||
+              boundaryElement !== prev.boundaryElement ||
+              boundaryInset !== prev.boundaryInset)
           ) {
             positionPopover();
           }
 
-          // TODO: factor prev checks out into the custom prevs hook
-          if (positions !== prevPositions.current) {
-            prevPositions.current = positions;
-          }
-          if (reposition !== prevReposition.current) {
-            prevReposition.current = reposition;
-          }
+          updatePrevValues();
 
           if (shouldUpdate) {
             window.requestAnimationFrame(updatePopover);
           }
         }
-
-        prevIsOpen.current = isOpen;
       };
 
       window.requestAnimationFrame(updatePopover);
@@ -131,6 +132,8 @@ const PopoverInternal = forwardRef(
       };
     }, [
       align,
+      boundaryElement,
+      boundaryInset,
       isOpen,
       padding,
       popoverRef,
@@ -141,7 +144,16 @@ const PopoverInternal = forwardRef(
       popoverState.popoverRect.width,
       positionPopover,
       positions,
+      prev.boundaryElement,
+      prev.boundaryInset,
+      prev.positions,
+      prev.reposition,
+      prev.transform,
+      prev.transformMode,
       reposition,
+      transform,
+      transformMode,
+      updatePrevValues,
     ]);
 
     useEffect(() => {
@@ -183,6 +195,7 @@ const PopoverInternal = forwardRef(
       body.addEventListener('click', handleOnClickOutside, clickOutsideCapture);
       body.addEventListener('contextmenu', handleOnClickOutside, clickOutsideCapture);
       body.addEventListener('resize', handleWindowResize);
+
       return () => {
         body.removeEventListener('click', handleOnClickOutside, clickOutsideCapture);
         body.removeEventListener('contextmenu', handleOnClickOutside, clickOutsideCapture);
diff --git a/src/useHandlePrevValues.ts b/src/useHandlePrevValues.ts
new file mode 100644
index 0000000..df3d412
--- /dev/null
+++ b/src/useHandlePrevValues.ts
@@ -0,0 +1,39 @@
+import { useCallback, useRef } from 'react';
+import { PopoverProps } from '.';
+
+export const useHandlePrevValues = (props: Partial<PopoverProps>) => {
+  const prevPositions = useRef(props.positions);
+  const prevReposition = useRef(props.reposition);
+  const prevTransformMode = useRef(props.transformMode);
+  const prevTransform = useRef(props.transform);
+  const prevBoundaryElement = useRef(props.boundaryElement);
+  const prevBoundaryInset = useRef(props.boundaryInset);
+
+  const updatePrevValues = useCallback(() => {
+    prevPositions.current = props.positions;
+    prevReposition.current = props.reposition;
+    prevTransformMode.current = props.transformMode;
+    prevTransform.current = props.transform;
+    prevBoundaryElement.current = props.boundaryElement;
+    prevBoundaryInset.current = props.boundaryInset;
+  }, [
+    props.boundaryElement,
+    props.boundaryInset,
+    props.positions,
+    props.reposition,
+    props.transform,
+    props.transformMode,
+  ]);
+
+  return {
+    prev: {
+      positions: prevPositions.current,
+      reposition: prevReposition.current,
+      transformMode: prevTransformMode.current,
+      transform: prevTransform.current,
+      boundaryElement: prevBoundaryElement.current,
+      boundaryInset: prevBoundaryInset.current,
+    },
+    updatePrevValues,
+  };
+};
diff --git a/src/usePopover.ts b/src/usePopover.ts
index ce1b31c..3b7c0d5 100644
--- a/src/usePopover.ts
+++ b/src/usePopover.ts
@@ -47,7 +47,9 @@ export const usePopover = ({
 
   const popoverRef = useElementRef({
     containerClassName:
-      containerClassName != null
+      containerClassName != null &&
+      containerClassName.length > 0 &&
+      containerClassName !== 'react-tiny-popover-container'
         ? `react-tiny-popover-container ${containerClassName}`
         : 'react-tiny-popover-container',
     containerStyle: POPOVER_STYLE,