使用js处理iframe时出错

Question

I'm using $("#element").attr("src", "http://url.com/page"); to set several iframes.

Is there a way to determine if an HTTP error occurred while setting a specific iframe and handle it accordingly?

Answer 1

The onerror event of the <iframe> does not work anymore, unfortunately.

Still, you could use a workaround like this :

• Bind a load event to all of the iframes you are loading

• Throw a setTimeout with arbitrary time for each <iframe> , like 60000 (1mn) or less in the mean time

If the load event triggers, clear the setTimeout .

It's not complete error handling, more a workaround. I used to do it with JSONP requests as there is no error handling too.

var timeout;
$("#iframe").attr("src", "url-cross-domain.html").on("load", function() {
    clearTimeout(timeout);
    console.log("loaded !");
}):
timeout = setTimeout(function() {
    $("#iframe").off("load").remove();
    console.error("iframe loading failed");
}, 60000);

It has several limitations, for example you'll be unable to get the request response code. But it worth a try.