Question

How to force mobile browser to download a .jpg file on click from another website. so far i tried:

<a href="https://anotherwebsite.com/example.jpg" target="_blank" download>Click To Download</a>

I found two workarounds for this problem (using javascript or php). I use php to bypass the problem. I create a file named download.php with this code in it:

<?php
if ($_SERVER['REQUEST_METHOD'] === 'GET') {
    if (!is_null($_GET['link']) && !empty($_GET['link'])) {
        $file = $_GET['link'];
        try {
            header('Content-type: image/*');
            header("Content-Disposition: attachment; filename=\"$file\"");
            readfile($file);
        }
        catch (Exception $ex){
            echo $ex->getMessage();
        }
    }
}

then I change the download links to this:

<a href="download.php?link=https://anotherwebsite.com/example.jpg">Click To Download</a>

is there another way that I'm not aware of?

Answer 1

根据定义它无法工作。见https://math.stackexchange.com/questions/139842/in-how-many-ways-can-a-number-be-expressed-as-a-sum-of-consecutive-numbers

此属性仅适用于同源网址。

Answer 2

根据Anchor元素，此属性仅适用于同源URL。但您仍然可以使用javascript和php来解决此问题。

强制浏览器下载<a> tag html5

2 个答案: