I added fancybox to a page to display a youtube or vimeo video when a person clicks on a thumbnail. When the popup opens everything looks fine but if you scroll on the page instead of staying in the fixed position the popup overlay and the popup itself scroll with the page. The iframe actually stays in it's fixed position though. Also it causes rendering artifacts to show up like duplicate popups.
It looks like it's actually some sort of rendering bug because the artifacts aren't really there. To fix this I added a scroll listener in javascript that adds and removes 1px of padding on the top of the body. This causes the browser to redraw the screen, i'm guessing, which repositions the overlay/popup and cleans up the artifacts.
This doesn't seem like a proper solution for this so I'm looking for alternate solutions to prevent this problem or at least a link to someplace confirming it's a rendering issue.
I'm using fancybox2 in the newest version of chrome on mac.
My workaround
options['fixed'] = false;
options['afterShow'] = forceUpdateUI;
options['afterClose'] = forceUpdateUI;
$.fancybox(
"hello world",options
);
}
function forceUpdateUI(){
$('body').addClass('dummy-class');
setTimeout(function(){
$('body').removeClass('dummy-class');
},500);
}
.dummy-class{
padding-top:1px;
}
Related
I’m seeing an issue where text only shows up after scrolling the HTML elements out of viewport or after switching to another tab and back. The same issue also happens in WKWebView. Is there a way to prevent this issue from happening? These sections can be scroll horizontally. Not sure if that’s related, but I find it very odd that Safari doesn’t render text that’s in the viewport.
In the attached image, you can see that there are blank rows under EU, UK and US.
Any suggestion is appreciative.
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Added another image showing HTML elements. Element with .wrapper-row is the one that has overflow-x property. This works perfectly fine on desktop including when simulating to mobile responsive size, but has an issue even with Chrome on iOS.
I found a workaround. After playing around with debugger, I believe this has to do with iOS trying to optimize what content to load. The problem is that it's incorrectly optimizing and not loading content within the initial visible viewport. This is a similar issue where sometime I have to trigger a fake scroll so that content aligns properly in Safari on iOS especially with position fixed or absolute.
To make sure content shows up. I did the following:
$('.selector').css('visibility', 'hidden');
setTimeout(function(){
$('.selector').css('visibility', 'visible');
}, 10);
This must be done outside of the main thread execution or it doesn't work. That's why I'm putting a small timeout before executing it.
I found an article that mentioned that this has to do with
-webkit-overflow-scrolling: touch
and that a solution is to add
-webkit-transform: translateZ(0px)
but that didn't work for me. You can reference that thread here just in case my solution doesn't work for you and this one does.
iOS textarea text hidden when using -webkit-overflow-scrolling: touch
In my app I am displaying website using the WKWebView component but since the website has <iframe> content, scrolling does not work. The iframe content itself registers taps and swipes but it never scrolls.
When I open the same page with Safari it works well, I can interact with iframe's content and scroll without any issues.
My iframe takes full width and height of the webpage and I added this property:
-webkit-overflow-scrolling: touch;
But it does not help. Unfortunately I cannot show the webpage in question because it contains proprietary data and is behing login screen.
I would prefer to solve this without having to modify the webpage, since Safari works fine.
EDIT: It looks like the iframe might be detecting the events and not "forwarding" them, because when there is also for example navbar on the page (that is not part of the iframe) I can swipe it and scroll. However since there is very little space on the screen, I would prefer not to have any other elements apart from iframe itself.
EDIT 2: I tried to display the page from iframe directly in the WKWebView but it still does not scroll at all. Works great in Safari.
Solution: In the end I solved the issue by changing the userAgent property of the WKWebView to match either iOS 12 Safari for iPhone or iPad depending on the device. The website in question is fairly complex regarding user interaction so I guess they were sending "incorrect" settings to the browser with the default user agent.
I would look for scroll-blocking event listeners that might conditionally load. If you have some kind of touch, touchmove, click, hover javascript events they might interfere with the default logic by using e.preventDefault().
Also you need to look for such events both in framed page and host page.
Try to replace a host page and framed page to see if scroll works well with different URLs.
Try placing the iframe in a div with -webkit-overflow-scrolling which takes up the full view and make the iframe the the size of it's content.
Example from: https://coderwall.com/p/c-aqqw/scrollable-iframe-on-mobile-safari
<div style="overflow:auto;-webkit-overflow-scrolling:touch">
<iframe src="./yxz" style="width:100%;height:100%">
</div>
You may have to get creative with resizing the iframe to match it's content (see: Adjust width and height of iframe to fit with content in it)
Over the last couple of weeks or so Chrome seems to have had an update that is making the page resume scrolled down in the middle. Moving between list and form pages on out site it resuming in the middle of the page.
Even basic form pages when you click save it is leaving the page at the bottom so you don't see the standard bootstrap record saved confirmation message at the top.
This is making Chrome unusable for our product demos etc. and causing a massive headache.
I have tried going in to chrome://flags/ and 'Scroll Anchor Serialization' off but had no affect.
I have also tried adding overflow-anchor: none; to the body tag but also didn't help.
Is there any other way of being able to disable Chromes auto scroll resuming on pages so that all pages load at the top of the page. It only seems to be Chrome and only seems to have started happening in the last couple of weeks. We are now getting to the point that Chrome is not usable as a browser on our site when it used to be the most reliable for demos.
In the end we have had to add:
<script type="text/javascript">
window.scrollTo(0, 0);
</script>
To every page which isn't the best solution but it works.
I'm encountering a strange issue.
I have a facebook button at the bottom of a page. When clicked, the facebook "Comment/share" box pops up.
The behaviour is correct under FF and IE, but not in Chrome, where the box is cut by the bottom of the page. In other words, the page isn't resized as it is under FF and IE.
The page has a min-height and max-height, and the containers have an overflow:visible attribute as the facebook docs advises to avoid some display issues of the share iframe.
The curious thing is that the bug disappears by simply opening the developer tools, and checking/unchecking any CSS attributes of any parent element of the FB-button.
My guess is that the resize of the window isn't captured by Chrome when the button is clicked, but it is when using the developer tools.
I tried to explore other sources of the problem (max-height not working properly or a higher element having a overflow:hidden) but I found nothing conclusive.
Thank you for help.
You may have an issue if you're running a theme in Chrome. If you are, try resetting to the default theme:
options > personal stuff > themes > reset to default theme
Also, make sure you aren't zoomed out or in. Chrome gets a little funky with the zooming.
Assuming those aren't the issues, try putting the Share code in a div with a unique ID or class:
<div id="myFacebookContainer">Plugin HTML Here</div>
Your CSS would include something along the lines of this:
#myFacebookContainer span{
height:25px;
}
#myFacebookContainer iframe{
height:25px;
}
I hope one of those suggestions helps!
Having a slight problem with
http://jquery.com/demo/thickbox/
In IE8, the overlay window doesn't scroll when you scroll down in the browser. So if you click something at the bottom of the browser window, the overlay window pops up but at the top of the screen so you have to scroll back up. This only happens in IE8, all other browsers the overlay window follows. Help? Thanks
I had the same problem, but only when using <frames> or <iframes>. Being unable to correct the problem, along with a few other bugs, I decided switch to using Shadowbox http://www.shadowbox-js.com/. I found it to be ALOT more flexible. Just a suggestion. But as for the IE8 problem you reported, I never encountered the issue in a parent window, just when using frames.