i'm trying to download a csv file, however it seem to work in all browsers except safari? how come is that. in safari it is just showing it in the browser?
Here is my code:
var saveData = (function () {
var a = document.createElement("a");
document.body.appendChild(a);
a.style = "display: none";
return function (data, fileName) {
var blob = new Blob([data], {type: "text/csv;charset=utf-8"}),
url = window.URL.createObjectURL(blob);
a.href = url;
a.download = fileName;
a.click();
setTimeout(function(){
window.URL.revokeObjectURL(url);
}, 100);
};
}());
Your using the HTML 5 download attribute on the anchor tag which Safari doesn't support.
http://caniuse.com/#feat=download
It's probably best to link to the file and set headers like so to tell the agent to download rather than display.
Content-Type: text/csv
Content-Disposition: attachment; filename="whatever.csv"
Related
I am trying to create an excel file that is downloadable from both Firefox and Chrome from an Angular 2+ environment. I have it working perfectly in firefox, but everything i try just doesn't work in Chrome - it downloads the file but when you open it throws an error - "Excel cannot open this file because the file format or file extension is not valid..".
I've tried to set my post responseType as 'arrayBuffer' and then creating a blob then downloading that, with no success. I've tried responseType as:
1)'blob'
2)'blob' as 'json'
3)'blob' as 'blob'
and passing it through to my component that way. Nothing seems to work on Chrome, everything works on Firefox though.
Here are some of my functions i have used to try get Chrome to open this excel.
downloadBlob(data: Blob, fileName: string) {
//output file name
//detect whether the browser is IE/Edge or another browser
if (window.navigator && window.navigator.msSaveOrOpenBlob) {
//To IE or Edge browser, using msSaveorOpenBlob method to download file.
window.navigator.msSaveOrOpenBlob(data, fileName);
} else {
//To another browser, create a tag to downlad file.
const url = window.URL.createObjectURL(data);
const a = document.createElement('a');
document.body.appendChild(a);
a.setAttribute('style', 'display: none');
a.href = url;
a.download = fileName;
a.click();
window.URL.revokeObjectURL(url);
a.remove();
}
}
blobToFile(data: Blob, fileName: string) {
const a = document.createElement('a');
document.body.appendChild(a);
a.style.display = 'none';
const url = window.URL.createObjectURL(data);
a.href = url; a.download = fileName; a.click();
window.URL.revokeObjectURL(url);
}
downloadArray(data, fileName: string) {
var blob = new window.Blob([data], {type: "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"});
window.URL = window.URL || window.webkitURL;
var url = window.URL.createObjectURL(blob);
window.location.href = url;
}
I've even tried to use the FileSaver.js plugin to save my blob with the oneliner
saveAs('blob', 'filename');
but everything wont read when opening from chrome. Any suggestions would be much appreciated.
Consider removing revokeObjectURL(). This test works and downloads in Chrome: https://batman.dev/static/70844902/
function downloadBuffer(arrayBuffer, fileName) {
const a = document.createElement('a')
a.href = URL.createObjectURL(new Blob(
[ arrayBuffer ],
{ type: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet' }
))
a.download = fileName
a.click()
}
I have used the below code to download a csv file
let url = "https://test.com/test/auth/files/download/86ccc28c-383f-4c84-ac0d-61478da2f62c/e60f7709-288a-424c-bb13-9ff4bb60bec1?platform=HTMLCLIENT&source=855ca910c9d347b69403cf1791bab97c&linktoken=be50f537833bf693d9e0a3ecb8432159db966ee6"
window.open(url);
Above code is working in all browsers except safari browser.
I have done the below work around,
let a = document.createElement('a');
a.target = '_self';
a.href = url;
a.download = 'test.csv';
document.body.appendChild(a);
a.click();
which is opening a file in new tab instead of downloading in safari. could any one help with this problem?
Reference: https://bugs.webkit.org/show_bug.cgi?id=167341
https://github.com/dotnetCarpenter/FileReader_Chrome
fetches as blob and converts to a datauri. Not suitable for large files, as the entire base64 encoded file has to be stored in memory.
fetch(url, {
method: 'get',
})
.then(response => response.blob())
.then(blob => {
const fileName = 'filename.csv'
if (navigator.msSaveBlob) { // IE11 and Edge 17-
navigator.msSaveBlob(blob, fileName)
} else { // every other browser
const reader = new FileReader()
reader.onloadend = () => {
const a = document.createElement("a")
a.href = reader.result
a.style.display = 'none'
a.download = fileName
document.body.appendChild(a)
a.click()
a.parentNode.removeChild(a)
}
reader.readAsDataURL(blob)
}
})
Can you post any of your html? I've had success forcing downloads of files by using the download attribute within an anchor tag.
<a href="http://www.this.link.com/csv_1.csv" download...
I'm attempting to download a CSV file using the href method, however it appears data is truncated when setting it to a href tag.
For IE I used msSaveBlob and that appears to be working correctly and all data is correctly downloaded.
if (navigator.msSaveBlob) { // IE 10+
navigator.msSaveBlob(new Blob([data], { type: 'text/csv;charset=utf-8;' }), filename);
}
//
var csvContent = "data:text/csv;charset=utf-8," + data;
var encodedUri = encodeURI(csvContent);
var link = document.createElement("a");
link.setAttribute("href", encodedUri);
//
link.setAttribute("download", filename);
link.innerHTML = "CSV Link - Placeholder";
document.body.appendChild(link); // Required for FF
link.click();
These are relatively large files, 9k lines in excel (around 500kb).
Any ideas what I can do to stop this truncation? Should I use a different method? Thanks!
Solved using below answer:
download file using an ajax request
Essentially:
var file = new Blob([data], {type: 'text/csv;charset=utf-8;'});
if (window.navigator.msSaveOrOpenBlob) // IE10+
window.navigator.msSaveOrOpenBlob(file, filename);
else { // Others
var a = document.createElement("a"),
url = URL.createObjectURL(file);
a.href = url;
a.download = filename;
document.body.appendChild(a);
a.click();
setTimeout(function() {
document.body.removeChild(a);
window.URL.revokeObjectURL(url);
}, 0);
}
I am trying to download the file in angular js. For that, I have used the blob concept . File is getting download successfully but when I open that file it says File is corrupted.
var saveData = (function () {
var a = document.createElement("button");
document.body.appendChild(a);
a.style = "display: none";
return function (excelData, fileName) {
// var blob = b64toBlob(excelData, contentType);
blob = new Blob([excelData], {type: "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"}),
url = window.URL.createObjectURL(blob);
a.href = url;
a.download = fileName;
a.click();
window.URL.revokeObjectURL(url);
};
}());
I am trying to download ICS file in all the browsers.
I am able to download ICS file in chrome but not in safari. Here is the javascript code that i used.
if(isChrome)
{
var blob=new Blob([data]);
var link=document.createElement('a');
link.href=window.URL.createObjectURL(blob);
link.download=fileName+".ics";
link.click()
}
if(!isChrome)
{
` alert("not chrome");
var downloadLink = document.createElement('a');
downloadLink.setAttribute('href', 'data:application/octet;charset=utf-8,' + escape(data));
var fileName = fileName+'.ics';
downloadLink.setAttribute('download', fileName);
var clk = document.createEvent("MouseEvent");
clk.initEvent("click", true, true);
downloadLink.dispatchEvent(clk);
document.body.appendChild(downloadLink);
downloadLink.dispatchEvent(clk);
//download(data, fileName+".ics", "text/calendar");
}
In Safari browser the generated file is getting downloaded but that file name is not getting appended. The filename i am getting is "Unknown" but the size of the file is 3KB and the content is there only the filename and extension is not getting added to the file.
Please let me know how i can solve this issue.
Thanks in advance
You should specify blob type. { type: 'text/calendar' }
const blob = new Blob([data], { type: 'text/calendar' });
const link = document.createElement('a');
link.href = window.URL.createObjectURL(blob);
link.download = filename + ".ics" ;
link.click();
Use this to download the file successfully, but you have to manually add it to the calendar. Safari does not include ics in a list of safe files and it will not be opened automatically.
If the problem is that you're using safari 10.1 or below the problem might be that it doesn't like the download attr.
http://caniuse.com/#feat=download