html5 saveAs support in google chrome

问题

I am trying to use saveAs interface as explained here

For the moment, I only worry about Google Chrome, and I uses latest Canary (Version 27.0.1429.0 canary)

Qn1: the article says.

The W3C File API includes a FileSaver interface, which makes saving generated data as easy as saveAs(data, filename), though unfortunately it will eventually be removed from the spec.

Why it would be removed?

Qn2: Below code.

if (window.saveAs) {
    window.saveAs(blob, name);
}else{
    console.log("saveAs not supported")
}

prints

saveAs not supported 

So chrome doesn't support saveAs. That is not the impression I have reading many article online.

回答1:

this is a polyfill, as explained in the article. You have to load the javascript file listed in the article, save it in your resources and link to it in your code: The repository is there: https://github.com/eligrey/FileSaver.js

There are limitations in Chrome, though. If file already saved, the new saving name is incremented : myFile(1), then myFile(2), etc.

I have now a bug on Chrome, which tells can it cannot OPEN the file, but it is just a false warning, as the file is well SAVED, which is the point.

来源：https://stackoverflow.com/questions/15211742/html5-saveas-support-in-google-chrome