I have a simple handlebars template where I have some number of items and I bind image src attribute form each item to logoUrl property, something like:
{{#each App.stationsController}}
<img height="50" width="50" {{bindAttr src="logoUrl"}} {{bindAttr alt="name"}}/>
{{name}}
{{/each}}
and it I have some code changing array in stationController.
Sometimes (not always but often) I see for a glimpse gray border around image square somehting like a gray border Chrome shows for broken images.
Removing image sizes stops this effect but it's not always a good option.
I use Chrome 18.0.1025.168 on Ubuntu Natty.
With Chromium I don't see flickering.
Any hints on what could be going on and how this effect could be stopped (without removing image size)?
Update
I've created example fiddle - http://jsfiddle.net/Va8C2/3/
And screenshot showing described border may be seen at http://imgur.com/diPct it's a frame 67 from mpeg file http://www.sendspace.com/file/my0gv4
Imgur returns 403 on first 'indirect' image load opening station images in other browser tab helps to solve it
Update2
Looks like the root of the problem was found but disabling AdBlock isn't a good solution.
It seems, that Adblock extention slows Chrome rendering process.
Related
I encountered a weird Firefox's behaviour. It renders SVG images cutting parts of them or not displaying them at all, but only certain of images, not all of them. Chrome and IE are displaying them properly. Here is a link to the website I put said images on:
funjo.pl
Images which are not being displayed properly are logo in top menu bar and big blue logo with transparency on the big very top banner. The funny thing is that two icons a bit down on the same page (three rolls and woman's legs), which are also SVGs are being displayed properly. Could someone please tell me what's going on? I suppose there is something wrong with SVG image code itself but I can't detect what exactly.
I'm not pasting whole images' code beacuse it's too much of it. You can download these images from http://funjo.pl/media/2016/06/logo.svg and http://funjo.pl/media/2016/06/logo2.svg.
PS: If you really want me very badly to paste the whole code let me know.
PS2: I created all of SVGs on the website using Corel X7, if this information helps in anything.
PS3: I'm using the newest FF v 46.0.1.
Actually I've found a solution myself, it helped perfectly but required few more steps after exporting SVG in Corel X7 (as I mentioned in my post above there were two images, one of them with transparency). So here are the steps I made to make it being displayed properly in FF (a bit trial and error procedure but works):
I exported both SVGs again removing transparency from the one which was originally transparent, so no transparency at all in both SVG images. The one used as logo in menu bar contained all the elements grouped (logo and text were both separate but grouped), I ungrouped those elements and made them as one.
I removed height and width attributes from both SVGs.
I added preserveAspectRatio="none" attribute so I could manage width and height of the image separately, just like raster images (this CSS Tricks article helps a lot with understanting the whole resizing process).
I used SVG Optimiser tool to remove all the unnecessary bits from my images and to slim them down a little.
I downloaded optimised SVGs from above mentioned tool's website, uploaded them to my website's FTP.
I added height:(some)px and width:auto attributes in CSS
I added transparency for the one which was supposed to be transparent via CSS - opacity:0.7 in this case.
Refreshed the website and voilà, it works like a charm. Hope it will help someone with the similar problem as mine.
EDIT
Here are images to compare, working one and not working one.
PS: After some more trials and errors I found out that changing standard text to curves in Corel X7 makes FF render the SVG image properly without above steps, but it doesn't change the fact that it worked properly in Chrome and IE anyway even if the text wasn't changed to curves before export. Plus FF didn't display SVG exported with transparency at all and Chrome and IE did.
You could open a working and failing SVG file into your text editor and find differences in the generated HTML.
I guess there is a difference the way you save it or how the vectors and layers are put. Maybe some transparent layer on top off the image renders strange?
Applying a width of 300px or above gave me the correct results as in chrome and IE.
So just give a width as below and probably you can adjust the width as per your requirement.
Hope it helps.
<img style="width: 300px;" src="http://funjo.pl/media/2016/06/logo.svg" alt="Funjo">
I solved it by removing commas , by spaces
I have an img menu with svg images that changes the svg image with a identical image with a different color when you push in menu. When I test it with Chrome it works fine until you visit one link the second time, that chrome resize it to a smaller image.
I've made a lot of tests... I've tested :visited css, user agent css, and many another properties and it seems to be all ok. When you changes some css property in developer tools it changes automagically to correct size.
My last test was to change the width from 135px to 134px (don't ask why) and it works in 1680x1050 screen but not in 1920x1200 screen (???????). Is it an aspect ratio problem?
I'm getting crazy!!
I'm using angularjs to make the black image to red image change, but I think this is not the problem (it does a src replacement)
You can see it in the webpage http://silviaperezcruz.com.
I'll apreciate any kind of help.
PD: Sorry for my bad english
I couldn't see an obvious reason why it is doing it,. But if I had to guess, I would cast a suspicious eye on respond.js first. Does it still do it if you remove that?
I'm currently working on a website and having an issue with Safari. When loading an image there is a black background that is placed as a stand in. I would rather this be transparent or white, but I can't seem to figure it out. Check it out:
http://blazing-ocean-6482.herokuapp.com/
I've made html and body have background-color:white; but this doesn't seem to have changed the issue.
Just save the PNG image with interlaced option
I had the same problem in safari 6.
My image was in grayscale color space. I switched it to rgb and the problem disappeared.
Try to check your images color space settings!
This happens because the PNG has no alpha channel.
Photoshop saves the image with the alpha channel only if the image has transparent pixels.
In order to work properly in Safari, IHDR chunk of PNG image must have "truecolor-apha" in it contents.
You can see the png chunks in tweakpng (http://entropymine.com/jason/tweakpng/) or similar programs.
I've had the same issue as above (only in Safari too). My body tag has a background image, is repeat-x and is used as the background for the whole website. When a user goes to the page in Safari, there is a flash of black on page load. I've searched for ages for a solution to this, but it appears to be an unresolved bug with Safari.
I'ved tried adding "style: background-color: #FFF" to the html and body tags and also tried using the old school "bgcolor: #FFF" - none work.
The only way I could get Safari to behave was to use CSS + jQuery. Give the body a class of "bg-on" in your html and CSS files. In a linked .js file or in the of your html page in tags:
jQuery(function ($) {
$(document).ready(function(){
$('body').removeClass('bg-on');
});//end document ready
/* NOTE (window).load fires when images have been fully loaded */
$(window).load(function() {
$('body').addClass('bg-on');
});//end window load function
});//end jQuery function no conflict mode
What the above does is when the DOM is loaded by the browser, it removes the class from the body, therefore Safari won't show a black background as no background-image is there. Then when the window.load event fires, when all assets have been loaded, the body is given the background image...
It won't affect JS disabled browsers either, as the class of "bg-on" is hardcoded into the html.
Not a particularly elegant solution, but it works for me.
I had this problem recently in Safari 6.0.2, which also showed up in mobile Safari (at least in iOS 6). Saving my background as interlaced didn't work across the board & the colour space was RGB. Thankfully my background had very few colours & converting it to GIF fixed the problem entirely.
My problem was, that I have uploaded correct file, but with page builder I have edited the image - and was converted to jpg from png.
First make png with alpha and then upload - worked.
I am trying to make it so these images will line up the way so that the blank.gif will appear in front of the image. i cannot use it as a background image, and i have tried using a negative z-index like -1 but then the image disappears all together on the site i have tried to use it on. my goal is to make the gray and black image appears behind the blank.gif.
things that i have to avoid or will not work are these:
z-index:-1 (just the negative numbers)
use of background image inside of a <div>
and both the images must remain inside a parent element, and my issue is that i cant use any script that needs to be inside of the head of the html. i have tried but cant find a solution. if you have any method of keeping an image from being right clicked and saved so easily then that would be great. any help is appreciated thank you.
image html are here: index.html
code sample:
<html><div style="position:absolute;width:150px;height:150px;display:inline;">
<img src="http://dl.dropbox.com/u/14413762/blank.gif" style="position:static:width:150px;height:150px;left:0px;top:0px;z-index:2;"><img src="http://dl.dropbox.com/u/14413762/bbc/image.png" style="position:absolute;left:0px;top:0px;;z-index:1;">
</div></html>
Yeah.. You're pretty much wasting time that is better spent elsewhere. A person who wants the image is going to get it, either with the web developer tools in firefox or chrome, viewing the page source, etc.
On a real note though, z-index only works with absolute, relative, or fixed positioned elements. It will not work with your statically positioned element that you set to a z-index of 2. I have done what you are trying to acheive with relatively positioned elements, z-index, and either top and left or negative top and left margins.
It's not possible to set transparent background for WebBrowser of WP7. To make impression of transparent background I want to do the following workaround. I want:
To find a position and size of WebBrowser on the page.
To get page's background image.
Crop it with values what I found on step 1.
To save result in IsolatedStorage
To parse HTML and place <body background="RESULTBACKGROUND">
MyWebBrowser.NavigateToString(NewHtmlString);
I think this should be a workaround of transparent background and should work.
For now I am trying just to place any .jpg image (let's say test.jpg) on step 5.
But fail. I have "Build Action" property of file set to "Content". It is placed in the root of the project. And <body background="test.jpg"> not working. Back of the WebBrowser is still white.
What I am doing wrong?
UPD:
Step 5 is solved.
2Claus: No! Not only from web. I saved both html file and image file to IsolatedStorage and WebBrowser can show image as a backgroud.
Now the problem is that background cannot be fixed. I tried many differrent things with styles. I also tried to add a fixed div behind my text. Nothing works. The picture is always scrolling with a text. I tried to add onscroll event and pass it scrolled value to move the div in an opposite direction, but div is glued to the page :(
Any ideas?
So assuming you're talking about the WebBrowser control, you're forgetting that the HTML only can refer to urls on the world wide web.
So either you need to host your background images on a website, or you need to inject a CSS style that sets the background to either white or black (the two default background-colours of the platform).
For WebBrowser, You don't actually have to save it to the ISO to make changes on the page. You can load it navigate to it normally, and then use InvokeScript to make the changes via custom JS code. It can be a little tricky though, as you will probably need to heavily rely on the eval and stringization. The problem mentioned by Claus is still there - but you need to do some experiments. With the Mango release and SDK 7.1+, the platform support IsoltatedStorage imagesources in the form of is://path/file - maybe - maybe - maybe squared - the webbrowser's renderer udnerstands them too - then setting your bkg's url to such would work. I doubt though, as it could be seen as some minor security breach, etc
I now bumped into the same background fixed image problem. For someone wandering here I solved it placing content into a fixed-height container (div) therefore the container contents is being scrolled and not the html page, leaving background picture "fixed".
body
{
background-image:url('...');
background-position:-20px -150px;
background-repeat:no-repeat;
background-attachment:fixed;
}
div
{
height:300px;
overflow:scroll;
}
Of course background-position and div height is set specifically for a WebBrowser position in page and it's size.