Media Queries Fail Inside Ie9 Iframe

July 27, 2023 Post a Comment

I have the following media queries in my CSS: @media screen and (min-width: 0px) and (max-width: 319px) { body {background-color:red;} } @media screen and (min-width: 320px) a

Solution 1:

Not a real answer but could help somebody else find a work around for this bug in IE.

Page containing iframes

<link href="style.css" rel="stylesheet">

Iframe pages

<link href="style.css?frameX" rel="stylesheet">

The param frameX prevents IE from caching the css page and thus the iframe has responsive layout independently from the other pages. This is just a hack(horrible one) and to help somebody else find the answer to this problem.

Sample files

Index.html

<!DOCTYPE html><htmllang="en"><head><title>Title</title><metaname="viewport"content="width=device-width, initial-scale=1.0"><linkhref="style.css"rel="stylesheet"></head><body><p></p><hr>
  250px frame
  <iframeframeBorder="0"src="frame1.html"height="100"width="250"id='frame_1'></iframe><hr>
  350px frame
  <iframeframeBorder="0"src="frame2.html"height="100"width="350"id='frame_2'></iframe><hr>
  390px frame
  <iframeframeBorder="0"src="frame3.html"height="100"width="390"id='frame_3'></iframe></div></body>

frame1.html

<!DOCTYPE html><htmllang="en"><head><title>Title</title><metaname="viewport"content="width=device-width, initial-scale=1.0"><linkhref="style.css?page=frame1"rel="stylesheet"></head><body><p></p></body></html>

frame2.html

<!DOCTYPE html><htmllang="en"><head><title>Title</title><metaname="viewport"content="width=device-width, initial-scale=1.0"><linkhref="style.css?page=frame2"rel="stylesheet"></head><body><p></p></body></html>

frame3.html

<!DOCTYPE html><htmllang="en"><head><title>Title</title><metaname="viewport"content="width=device-width, initial-scale=1.0"><linkhref="style.css?page=frame3"rel="stylesheet"></head><body><p></p></body></html>

style.css

iframe{display:block;}

@media (max-width: 8000px)
{
  bodyp:before {content: "bigger than 550px";}
}

@media (max-width: 550px)
{
  bodyp:before {content: "max550";}
}

@media (max-width: 450px)
{
  bodyp:before {content: "max450";}
}

@media (max-width: 350px)
{
  bodyp:before {content: "max350";}
}


@media (max-width: 250px)
{
  bodyp:before {content: "max250";}
}

Solution 2:

Here's what I did:

using jQuery...
get all iframes on the page
onload of each iframe find all the stylesheet links
for each stylesheet grab the url and append a random num 'nocache' querystring to it
create a new stylesheet link tag and append it to the head
done.

Here's the code:

// This forces the media queries to run in IE iframes, by waiting for the iframes to load and then,// re-getting/applying the stylesheet
(function($){
    // Get each of the iframes on this page
    $('iframe').each(function(index){
        // On load of each iframe:
        $(this).on('load', function(){
            var iframeDoc = $(this).contents();

            // For each stylesheet reference found:
            iframeDoc.find('link[rel="stylesheet"]').each(function(){
                // Get the current stylesheet's url and add a 'nocache' random num query string to itvar cssURL = $(this).attr('href');
                cssURL += (cssURL.indexOf('?') != -1)? '&':'?';
                cssURL += 'nocache=' + (Math.random() + index);

                // Create a new stylesheet link tag and append it to the head
                $("<link/>", {
                    rel: "stylesheet",
                    type: "text/css",
                    href: cssURL
                }).appendTo(iframeDoc.find('head'));
            });

        });
    });
})(jQuery);

Solution 3:

You most likely aren't going to be able to fix this. Media Queries are based on viewport size and I imagine IE isn't treating the iFrame as a fully fledged viewport in this context.

Your best bet would most likely be to add a bit of JavaScript that detects the size and adds a class to the at the same thresholds you are using for your responsive design. This would also give you backwards compatibility with browsers that don't support media queries.

Solution 4:

Had the same Probleme. However I found an easy fix. Using JS to create the iframes I just appended something like ?nocache=Math.random() to the iframe src. That fixed it for me :)

Solution 5:

I had this problem with IE9. The parent page didn't have a doctype declared. Adding an html5 doctype (<!DOCTYPE html>) in the parent page solved the problem.

Html5 Log