Invalid argument(s): No host specified in URI

## 🐛 Bug Report

Even if I put a static URL I am still getting the error below

### Expected behavior

Expected behavior is that it is supposed to load the image but that is not happening

### Reproduction steps
When switching to a screen that does not have cachedNetworkImage widget the error pops up

When the exception was thrown, this was the stack:
#0 _HttpClient._openUrl (dart:_http/http_impl.dart:2752:9)
#1 _HttpClient.openUrl (dart:_http/http_impl.dart:2623:7)
#2 IOClient.send (package:http/src/io_client.dart:117:38)
#3 HttpFileService.get (package:flutter_cache_manager/src/web/file_service.dart:37:44)
#4 WebHelper._download (package:flutter_cache_manager/src/web/web_helper.dart:115:24)
#5 WebHelper._updateFile (package:flutter_cache_manager/src/web/web_helper.dart:97:28)

#6 WebHelper._downloadOrAddToQueue (package:flutter_cache_manager/src/web/web_helper.dart:65:7)

Image provider: CachedNetworkImageProvider("", scale: 1.0)
Image key: CachedNetworkImageProvider("", scale: 1.0): CachedNetworkImageProvider("", scale: 1.0)
### Configuration

**Version:** 3.3.1

**Platform:**
- [ x] :iphone: iOS
- [ x] :robot: Android