How to prompt browser to display open/save dialog box using jquery?

How to prompt browser to dis开发者_运维百科play open/save dialog box using jquery?

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Not possible. The browsers handle that specifically so that hackers can't force you to download a virus, which would be much easier for them if it happened in javascript.

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What I've done in situations such as this is open an invisible iFrame on the page using javascript, which opens a page with the apprepriate HTTP headers:

Content-Disposition: attachment; filename=genome.jpeg;

naturally change "genome.jpg" to the appropriate default filename.