Can't loadURL from blob

[Fiorello]

Hi, i'm trying to load a pdf file from a blob without success. With a real url it's work, with blob url it render a blank page without error. My code: `const filePath = path.join(dirPath, files[0]);

  Utils.decryptStream(filePath, password, (error, content) => {

    const blob = new Blob([content], {type: 'application/pdf'});

    const objectURL = URL.createObjectURL(blob);

    const currentWindow = remote.getCurrentWindow();

    // console.log(objectURL);
    PDFWindow.addSupport(currentWindow);

    currentWindow.loadURL(objectURL);

  });

});`

Can anyone help me please?

[ronsc]

+1

[codedeus]

What i did to get it working for me was to convert the blob to a base64 dataurl and then write the dataurl to a pdf file using node filesystem api and then reading the url to the saved pdf

`fs.writeFile('the name of the pdf you want to save',new Buffer(data, "base64"), (err) => {

 if (err) throw err;
 console.log('The file has been saved!');
 win.loadURL('path to the saved file');

});`

[burtonator]

I'm having the same issue.

Note that the same code on the latest Chrome works fine.

Uncaught (in promise) DOMException: Failed to execute 'postMessage' on 'Worker': Error: Protocol "blob:" not supported. Expected "https:" could not be cloned.
    at O.postMessage (file:///home/burton/projects/polar-bookshelf/pdfviewer/web/pdf.viewer.js:1:15528)
    at l (file:///home/burton/projects/polar-bookshelf/pdfviewer/web/pdf.viewer.js:1:12217)
    at file:///home/burton/projects/polar-bookshelf/pdfviewer/web/pdf.viewer.js:1:13060
    at <anonymous>
pdf.viewer.js:1 Uncaught (in promise) Error: An error occurred while loading the PDF.
    at pdf.viewer.js:1
    at <anonymous>

[joshuaballas]

Still an issue a year later...

Electronjs doesn't support blobs yet in their native pdf viewer either. Pretty much the main way businesses open PDFs isn't support by either of these repos.

[burtonator]

Try this:

https://github.com/burtonator/polar-bookshelf

Polar loads the PDF via HTTP into Electron to bypass this problem

[joshuaballas]

@burtonator I gave this a look and it looks promising, but I can't find any documentation on how to set it up.

[burtonator]

I'm doing another release this morning. It's basically just download and install. The README.md in the home directory explains how to install - near the bottom.

Create an issue in that repo if you are confused about anything.

[joshuaballas]

@burtonator I ended up making an Issue on there. If this is something I have to install in order to use, that is not something our company can use. This needs to be something implemented directly into my project.

EDIT: Turned out to be an app and not an API. Not an alternative in this instance.