Fix infinite scroll with disabled transition page

fixes #1108

CHANGELOG.md

@@ -42,6 +42,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 - (**Reader**) Fix jumping back to the first page on window resize
 - (**Reader**) Fix chapter not getting marked as read in continuous reading mode in case the last page is not big enough to get marked as the current page
 - (**Browse**) Fix showing only nsfw sources in the browse source page when the "show nsfw" setting is disabled
+- (**Reader**) Fix infinite scrolling with disabled transition page
 
 ## [20260509.01] (r3147) - 2026-05-09
 

src/features/reader/infinite-scroll/useReaderInfiniteScrollUpdateChapter.ts

@@ -272,10 +272,12 @@ export const useReaderInfiniteScrollUpdateChapter = (
 
         const onScroll = () => {
             const isAtStartX = scrollElement.scrollLeft === 0;
-            const isAtEndX = scrollElement.scrollLeft === scrollElement.scrollWidth - scrollElement.clientWidth;
+            const isAtEndX =
+                Math.ceil(scrollElement.scrollLeft) === scrollElement.scrollWidth - scrollElement.clientWidth;
 
             const isAtStartY = scrollElement.scrollTop === 0;
-            const isAtEndY = scrollElement.scrollTop === scrollElement.scrollHeight - scrollElement.clientHeight;
+            const isAtEndY =
+                Math.ceil(scrollElement.scrollTop) === scrollElement.scrollHeight - scrollElement.clientHeight;
 
             const isAtStart = isContinuousVerticalReadingModeActive ? isAtStartY : isAtStartX;
             const isAtEnd = isContinuousVerticalReadingModeActive ? isAtEndY : isAtEndX;
@@ -306,7 +308,6 @@ export const useReaderInfiniteScrollUpdateChapter = (
         useCallback(
             (entries) => {
                 if (
-                    // !shouldShowTransitionPage ||
                     !shouldUseInfiniteScroll ||
                     !isContinuousReadingMode(readingMode) ||
                     chapterToOpenId === undefined