3.4.2 preserveViewport: false - Error in Openseadragon when double-clicking on the thumbnail

[mexthecat]

If you open a page in tag: 3.4.2 with preserveViewport: false and then click on the same page in the thumbnails, the page disappears and an error is displayed for OpenSeadragon.

I solved this in my installation with the following batch:

diff --git a/src/state/reducers/viewers.js b/src/state/reducers/viewers.js
index ec36e293..91be7783 100644
--- a/src/state/reducers/viewers.js
+++ b/src/state/reducers/viewers.js
@@ -30,9 +30,6 @@ export const viewersReducer = (state = {}, action) => {
     case ActionTypes.SET_WINDOW_VIEW_TYPE:
       return set([action.windowId], null, state);
     case ActionTypes.SET_CANVAS:
-      if (!action.preserveViewport) {
-        return set([action.windowId], null, state);
-      }
       return state;
     case ActionTypes.IMPORT_MIRADOR_STATE:
       return action.state.viewers || {};

Unfortunately, I don't understand what I deleted. I assume that this is an artefact. Because in the last version the preserveViewport function is used directly by OpenSeadragon. But maybe I'm wrong and the lines have a meaning.

[marlo-longley]

@mexthecat thanks for reporting this. We will have to release this fix but please let me know if your issue is fixed on the 3.x branch.