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Open blob objectURL in Chrome

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挽巷
挽巷 2020-12-24 06:22

I want to open a PDF in a new tab in chrome browser (Chrome 56.0.2924.87, Ubuntu 14.04) using window.open(fileObjectURL) in javascript. I am creating the blob f

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6条回答
  • [愿得一人]
    2020-12-24 07:06

    Salaam

    blob:http://***.***.***.**/392d72e4-4481-4843-b0d4-a753421c0433

    Blobs are not blocked by chrome but are blocked by AdBlock extension Either:

    • Pause on this site
    • Don't run on pages on this site
    • Or Disable or Remove AdBlock Extension

    0 讨论(0)
  • 有刺的猬
    2020-12-24 07:07

    You must open new window before you put blob url in window:

    let newWindow = window.open('/')

    Also you can use some another page like /loading, with loading indicator.

    Then you need to wait newWindow loading, and you can push url of your blob file in this window:

    newWindow.onload = () => {
    newWindow.location = URL.createObjectURL(blob);
};

    Adblock extension don't block it.

    I'm using it with AJAX and ES generators like this:

    let openPDF = openFile();
openPDF.next();
axios.get('/pdf', params).then(file => {
  openPDF.next(file);
});

function* openFile() {
  let newWindow = window.open('/pages/loading');
  // get file after .next(file)
  let file = yield;
  // AJAX query can finish before window loaded,
  // So we need to check document.readyState, else listen event
  if (newWindow.document.readyState === 'complete') {
    openFileHelper(newWindow, file);
  } else {
    newWindow.onload = () => {
      openFileHelper(newWindow, file);
    };
  }
}

function openFileHelper(newWindow, file) {
  let blob = new Blob([file._data], {type: `${file._data.type}`});
  newWindow.location = URL.createObjectURL(blob);
}
    0 讨论(0)
  • 别那么骄傲
    2020-12-24 07:16

    In plain vanilly javascript (because I don't have jquery)

    let newWindow = window.open('/file.html');
newWindow.onload = () => {
    var blobHtmlElement;
    blobHtmlElement = document.createElement('object');
    blobHtmlElement.style.position = 'fixed';
    blobHtmlElement.style.top = '0';
    blobHtmlElement.style.left = '0';
    blobHtmlElement.style.bottom = '0';
    blobHtmlElement.style.right = '0';
    blobHtmlElement.style.width = '100%';
    blobHtmlElement.style.height = '100%';
    blobHtmlElement.setAttribute('type', 'application/pdf'); 
    blobHtmlElement.setAttribute('data', fileObjectURL);
    newWindow.document.title = 'my custom document title';
    newWindow.document.body.appendChild(blobHtmlElement);
};

    /file.html is an almost empty html file, source:

    <!DOCTYPE html>
<html lang="en">
<head>
</head>
<body>

</body>
</html>

    Tested in chrome & firefox (on 20/november/2019)

    0 讨论(0)
  • 有刺的猬
    2020-12-24 07:16

    I do not have Ad blocker. Looks like setting the blob type explicitly to application/pdf will solve this issue.

    const newBlob = new Blob([blobData], {type: "application/pdf"});

    0 讨论(0)
  • 攒了一身酷
    2020-12-24 07:20

    Work around way to by pass adblocker.

    coffeescript & jquery

    $object = $("<object>")
$object.css
  position: 'fixed'
  top: 0
  left: 0
  bottom: 0
  right: 0
  width: '100%'
  height: '100%'
$object.attr 'type', 'application/pdf'
$object.attr 'data', fileObjectURL
new_window = window.open()
new_window.onload = ->
  $(new_window.document.body).append $object
    0 讨论(0)
  • 无人及你
    2020-12-24 07:26

    The cause is probably adblock extension (I had exactly the same problem).

    0 讨论(0)
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