Check iframe status after AJAX File Upload with Rails
There is a similar post Retrieving HTTP status code from loaded iframe with Javascript but the solution requires the server-side to return javascript calling a function within the iframe. Instead, I would simply like to check the HTTP status code of the iframe without having to call a function within the iframe itself since my app either returns the full site through HTML or the single object as JSON. Essentially I've been trying to implement a callback method which returns success|failure dependent upon the HTTP status code.
Currently I have uploadFrame.onLoad = function() { ... so far pretty empty ... } and I am unsure what to check for when looking for HTTP status codes. Up until now, I've mainly relied up开发者_开发技巧on jQuery's $.ajax() to handle success|failure but would like to further understand the mechanics behind XHR calls and iframe use. Thanks ahead of time.
UPDATE
The solution I came up with using jQuery
form.submit(function() {
uploadFrame.load(function() {
//using eval because the return data is JSON
eval( '(' + uploadFrame[0].contentDocument.body.children[0].innerHTML + ')' );
//code goes here
});
});
I think the best solution is injecting <script> tag into your iframe <head> and insert your "detecting" javascript code there.
something like this:
$('#iframeHolderDivId').html($.get('myPage.php'));
$('#iframeHolderDivId iframe head').delay(1000).append($('<script/>').text('your js function to detect load status'));
Maybe it's not the best solution but I think it works
加载中,请稍侯......
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