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Questions tagged [bloburls]

Blob URLs is actually 2 combined concepts: BLOBs and Object-URLs in html5 and javascript

54 questions
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What is a blob URL and why it is used?

I am having trouble with blob URLs. I was searching for src of a video tag on YouTube and I found that the video src was like: src="blob:https://video_url" I opened the blob URL that was in src of the video, but it gave an error. I can't open the…
Waqas Tahir
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How to save .xlsx data to file as a blob

I have a similar question to this question(Javascript: Exporting large text/csv file crashes Google Chrome): I am trying to save the data created by excelbuilder.js's EB.createFile() function. If I put the file data as the href attribute value of a…
gm2008
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How can I make a really long string using IndexedDB without crashing the browser?

I'm writing a web app that generates a potentially large text file that the user will download, and all the processing is done in the browser. So far I'm able to read a file over 1 GB in small chunks, process each chunk, generate a large output file…
Matt
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How to use Blob URL, MediaSource or other methods to play concatenated Blobs of media fragments?

Am attempting to implement, for lack of a different description, an offline media context. The concept is to create 1 second Blobs of recorded media, with the ability to Play the 1 second Blobs independently at an HTMLMediaElement Play the full…
guest271314
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1 answer

WebView + Blob URL + Download Image

After a Long Time, I was Used WebView. so let me ask what I have a phase issue. -I had Google for Blob URL but I hvnt find a solution OR Any hint so I have to post Question HERE. -I have WebView at the android side to Load A website. At their On…
Vishal Patel
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1 answer

Windows Edge and opening a blob url

I'm getting some odd results when trying to open a new window with a blob url in Windows Edge (20.10240.16384, which is the version in the IE11 VM supplied by Microsoft). var xhr = new XMLHttpRequest(); xhr.open('POST', sourceUrl,…
Technicolour
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Blob url in internet explorer with angularjs

Given this code (from someone else): var module = angular.module('myApp', []); module.controller('MyCtrl', function ($scope){ $scope.json = JSON.stringify({a:1, b:2}); }); module.directive('myDownload', function ($compile) { return { …
Nicros
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Understanding blob url video streaming

Many video stream websites, youtube for example, seem to have a blob url as their video source. Searching, I couldn't figure out how this works. For example...
Dennis Ranish
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2 answers

How can I revoke an object URL only after it's downloaded?

I'm saving a file in JavaScript using the following code: var a = document.createElement('a'); a.href = URL.createObjectURL(new Blob(['SOME DATA'])); a.download = 'some.dat'; a.click(); I want to revoke the URL (using URL.revokeObjectURL) once the…
Steve Trout
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Video with a BlobURL src doesn't play on iOS 10.3

Preload video as Blob, and then use createObjectURL() to create a BlobURL. The video plays on all OSs/browsers, but on iOS 10.3 got rejected when trying to play (promise) with the message: NotSupportedError (DOM Exception 9): The operation is not…
Neo
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How to download large files in javascript with OAuth without storing the whole file in browser?

I have a closed-source SaaS webapp that requires OAuth for my users to access some data. Much of the data available is binary, and would be much easier dealt with if users could download files, rather than doing everything in the browser. I can…
Jayen
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Invalid absolute docBaseUrl "blob"

I have a new problem with an old script. The problem is already exist with an old (1.5.3) and the newest (2.5.1) jsPDF version. Until recently, the Save or View dialog was displayed when creating a PDF in the browser. Now it works only if the…
Andramox
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How to handle blob url in WKWebView and download file?

I need to implement file downloading in WKWebView. My example implementation: @available(iOS 14.5, *) func webView(_ webView: WKWebView, navigationResponse: WKNavigationResponse, didBecome download: WKDownload) { download.delegate =…
runia
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How can i read data from blob url?

I have to read the data as an array of characters or even better as an base64 string from a blob url, for later processing. The blobUrl that i have to read for example is blob:https://localhost:44399/a4775972-6cc8-41a3-af64-1180d9941ab0 Actually…
OrElse
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How to send PDF (jsPdf) to the back end (PHP - Zend 1)

I'm using jsPDF to create a pdf on client side and it's working fine by using pdf.save('document.pdf');. Now I'm trying to send an email along with PDF as an attachment by using AJAX and Zend_Mail function on the back end, but it doesn't work! Well,…
Adeel
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