From ef933f997584cac743afcb77579d1dc1506dcbee Mon Sep 17 00:00:00 2001
From: Damien Elmes <gpg@ankiweb.net>
Date: Thu, 3 Nov 2022 11:47:31 +1000
Subject: [PATCH] Fix MathJax pop-up appearing at bottom of screen

Closes #2174
---
 ts/sveltelib/position/position-floating.ts | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/ts/sveltelib/position/position-floating.ts b/ts/sveltelib/position/position-floating.ts
index 9094f475f..43bd84637 100644
--- a/ts/sveltelib/position/position-floating.ts
+++ b/ts/sveltelib/position/position-floating.ts
@@ -47,6 +47,7 @@ function positionFloating({
         floating: FloatingElement,
     ): Promise<void> {
         const middleware: Middleware[] = [
+            // the .shift() lines below expect flip() to be first
             flip(),
             offset(offsetArg),
             shift({ padding: shiftArg }),
@@ -63,9 +64,11 @@ function positionFloating({
 
         if (Array.isArray(placement)) {
             const allowedPlacements = placement;
-
+            // flip() is incompatible with autoPlacement
+            middleware.shift();
             middleware.push(autoPlacement({ allowedPlacements }));
         } else if (placement === "auto") {
+            middleware.shift();
             middleware.push(autoPlacement());
         } else {
             computeArgs.placement = placement;