Error:
My Code is like this below. Look like it working fine, but i really dont want the error detect when we are in production environment.
```javascript
// init load to make new instance available
useEffect(() => {
viewer(
{
path: "/resources/public/webviewer/lib",
initialDoc: "/resources/public/files/PDFTRON_about.pdf"
},
viewerRef.current
).then(instance => {
setInstance(instance);
});
}, []);
// when the file ready to load to viewer
useEffect(() => {
if (getDocFile && instance && getFileName) {
extractXFDF();
instance.loadDocument(base64ToBlob(getDocFile), { filename: getFileName });
setFirstLoadReady(true);
}
}, [getDocFile, instance, getFileName]);
// when the load is ready, set the save button as header
useEffect(() => {
if (firstLoadReady) {
instance.setHeaderItems(header => {
header.push({
type: "actionButton",
img:
'',
onClick: async () => {
setLoadingAnimation(true);
setFirstLoadReady(false);
funcPageCount();
}
});
});
}
}, [firstLoadReady]);
```
---
Hi there,
It looks like you are using an older version of PDF.js Express. Are you able to reproduce this error with the latest version (7.3.3)?.
This error comes up when some PDF.js Express resources can not be loaded properly. Please ensure all assets are being served correctly and that your `path` argument is correct.
Logan
---