Fix frame preloading (#2608)

* fixed frame preloading

* version++

* updated changelog

CHANGELOG.md

@@ -26,6 +26,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed
 
 - Memory consumption for the task creation process (<https://github.com/openvinotoolkit/cvat/pull/2582>)
+- Frame preloading (<https://github.com/openvinotoolkit/cvat/pull/2608>)
 
 ### Security
 

cvat-data/package-lock.json

 {
   "name": "cvat-data",
-  "version": "1.0.1",
+  "version": "1.0.2",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {

cvat-data/package.json

 {
   "name": "cvat-data",
-  "version": "1.0.1",
+  "version": "1.0.2",
   "description": "",
   "main": "src/js/cvat-data.js",
   "devDependencies": {

cvat-data/src/js/cvat-data.js

@@ -21,6 +21,7 @@ class FrameProvider {
         this._blocksRanges = [];
         this._blocks = {};
         this._running = false;
+        this._blockSize = blockSize;
         this._blockType = blockType;
         this._currFrame = -1;
         this._requestedBlockDecode = null;