Viewing pdf from url in Flutter using the package advance_pdf_viewer - flutter

Question

I can successfully view pdfs however any state changes in my page, such uploading new pdfs, thereafter, I can only view the pdfs that have been cached. All the others hang on the function:
document = await PDFDocument.fromURL(file);
I am using the package advance_pdf_viewer, is this a bug within the package? I am fetching the url from the rails api all with the similar url prefix.
import 'dart:async';
import 'package:advance_pdf_viewer/advance_pdf_viewer.dart';
import 'package:fl_downloader/fl_downloader.dart';
import 'package:flutter/material.dart';
class PdfViewer extends StatefulWidget {
final String file;
final String counter;
const PdfViewer({Key? key, required this.file, required this.counter}) : super(key: key);
#override
State<PdfViewer> createState() => _PdfViewerState(file, counter);
}
class _PdfViewerState extends State<PdfViewer> {
String file;
String counter;
_PdfViewerState(this.file, this.counter);
bool _isLoading = true;
bool _isDownloading = false;
PDFDocument? document;
int progress = 0;
late StreamSubscription progressStream;
#override
void initState() {
loadDoc();
FlDownloader.initialize();
progressStream = FlDownloader.progressStream.listen((event) {
print(event.status);
if (event.status == DownloadStatus.successful) {
setState(() {
progress = event.progress;
_isDownloading = false;
});
FlDownloader.openFile(
filePath: event.filePath,
);
} else if (event.status == DownloadStatus.running) {
setState(() {
_isDownloading = true;
progress = event.progress;
});
}
});
}
void dispose(){
progressStream.cancel();
super.dispose();
//...
}
loadDoc() async {
try {
document = await PDFDocument.fromURL(file);
} catch (e) {
Navigator.pop(context);
}
setState(() => _isLoading = false);
}
download() async {
await FlDownloader.download(file, fileName: 'Report-${counter}.pdf');
setState(() {
_isDownloading = false;
});
}
#override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
leading: IconButton(
icon: Icon(
Icons.cancel,
color: Color(0xff5C449A),
),
onPressed: () => {Navigator.pop(context)},
),
actions: [
IconButton(
icon: Icon(
Icons.save,
color: Color(0xff5C449A),
),
onPressed: download,
),
],
title: Text(
"Report",
style: TextStyle(color: Color(0xff383636)),
),
backgroundColor: Colors.white,
),
body: Center(
child: _isLoading
? const Center(child: CircularProgressIndicator())
: Stack(children: [
PDFViewer(document: document!),
(_isDownloading == true)
? Container(
decoration: BoxDecoration(
color: Colors.black.withOpacity(0.7)),
child: Align(
alignment: Alignment.center,
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
children: [
CircularProgressIndicator(
color: Color(0xff5C449A)),
Padding(
padding: const EdgeInsets.only(top: 20.0),
child: Text(
"DOWNLOADING ($progress%)",
style: TextStyle(
color: Colors.white,
fontWeight: FontWeight.bold),
),
)
],
)),
)
: Text("")
])),
);
}
}
I am not sure what else to do other than programatically force a hot restart.