Merge pull request #6832 from oterral/fix_5269

Force state of error tiles when usInterimTilesOnError is false

src/ol/renderer/canvas/tilelayer.js

@@ -144,6 +144,10 @@ ol.renderer.canvas.TileLayer.prototype.prepareFrame = function(frameState, layer
   for (x = tileRange.minX; x <= tileRange.maxX; ++x) {
     for (y = tileRange.minY; y <= tileRange.maxY; ++y) {
       tile = tileSource.getTile(z, x, y, pixelRatio, projection);
+      // When useInterimTilesOnError is false, we consider the error tile as loaded.
+      if (tile.getState() == ol.TileState.ERROR && !this.getLayer().getUseInterimTilesOnError()) {
+        tile.setState(ol.TileState.LOADED);
+      }
       if (!this.isDrawableTile_(tile)) {
         tile = tile.getInterimTile();
       }