To bind html content to div I use ng-bind-html. When I try to bind larger HTML it takes 5-6 seconds. This works fine in chrome browser. I use $sce.trustAsHtml() to make the HTML trusted. Has anyone run into similar issue?
When I use $sce.getTrustedHtml() this delay doesn't happen since the HTML is already sanitized and browser simply binds the HTML with out doing any sanity check. It seems to me that when we use $sce.trustAsHtml() edge browser is doing sanity check and it is very slow.
Related
I'm making a script to preview email templates so I'm getting a full HTML page (with ) and I'm willing to make a popup with this page.
I'm getting the result from an API that gave me the full code inside a variable.
How to display this page inside my app without surcharging the styles ?
Thank you
Ps: I can't use an iframe since I can't get the preview from a simple get query (without header)
You can try one of these options (all of them have drawbacks)
ng-bind-html (AngualrJS directive) - doesn't provide styles encapsulation
iFrame - provides styles encapsulation, browser compatibility is not a problem. Still, you may need to set up or adjust your CSP policies if you are worried about security or have it already in place.
Shadow DOM - provides styles encapsulation, but you need to make sure it fits your supported browsers, and it's quite tricky to implement for AngularJS
UPD: based on your recent update, I guess you can proceed with ng-bind-html directive (HTML content will be sanitized, but you will have to cope with styles intersection and head & body tags warnings). If it doesn't work - try iFrame based on the approach referenced above (you don't need to make any external queries/requests for that).
iframe is the tag which you can use for call other html pages into your web page
<iframe src="http://www.page.com" name="targetframe" allowTransparency="true" scrolling="no" frameborder="0" >
</iframe>
I have an angular application that run ok on chrome and firefox.
But on IE the application does not work.
My Big problem is that I can't find the error reason. and got some generic error.
How can I debug the application on IE or how can I find the reason for the Error
This means that ng module is failing to load. :)
Please look at your browser's console to find if any files are missing or not being downloaded correctly. Also it helps if you click on the link to http://errors.angularjs.org in your console, it will give details about which particular module is failing to load.
Check below link for complete details for resolution:
http://blog.technovert.com/2014/10/dependency-injection-fails-angularjs/
IE Debugging : First of all you need to ensure your Angular application works on IE please consider the use ng-style tags instead of style="{{ someCss }}". The latter works in Chrome and Firefox but does not work in Internet Explorer <= 11. Arguably, this is the biggest annoyance of IE—the page just doesn’t load and doesn’t give any errors. Sometimes you need to view the page again in Firefox. If it’s not an IE specific error, Firebug will pick it up. If Firebug loads normally, the chances are it’s one of two IE specific errors: a trailing comma, or unsupported XML syntax.
For minimize the application files I use
bundles.Add(new ScriptBundle("~/app").IncludeDirectory("~/Assets/app", "*.js", true)
);
(Part of asp.net mvc)
And from the layout page I take all the application files
#Scripts.Render("~/app")
Like I said this part of code worked for me in some browsers, But on IE It fail.
By Changing the script src to all specific files, I resolve this problem. and now on IE it work like the other browsers.
Maybe I miss a comma or ";" (end row) or something like that.
Thanks
need to check this page or api
http://henriquat.re/appendix/angularjs-and-ie8/necessary-changes-for-ie8-compatibility.html
https://docs.angularjs.org/guide/ie
I made a little chrome extension with angularjs and bootstrap. I have a alert like this:
<div class="alert alert-danger" role="alert" ng-show="errorMailZR">error</div>
and in angularjs controller :
$scope.errorMailZR = false;
i put it to false because i see the alert by default, it's not hidden :/ but in single web page when i go on it with browser, everything is ok. So, what i need for it's works in chrome extension ?
ng-show="false" doesn't work too in chrome extension...
UPDATE:
https://docs.angularjs.org/api/ng/directive/ngCsp#!
In order to run angular on an extension page, you have to use the ng-csp directive, or satisfy the ng-csp policies. I'm assuming you've done this, or nothing would be working at all.
Doing so turns off inline style insertion, this line in particular in angular.js (showing for reference, not for modification!):
!window.angular.$$csp().noInlineStyle && window.angular.element(document.head).prepend('<style type="text/css">#charset "UTF-8";[ng\\:cloak],[ng-cloak],[data-ng-cloak],[x-ng-cloak],.ng-cloak,.x-ng-cloak,.ng-hide:not(.ng-hide-animate){display:none !important;}ng\\:form{display:block;}.ng-animate-shim{visibility:hidden;}.ng-anchor{position:absolute;}</style>');
To get directives that rely on classes like ng-hide, ng-animate, ng-cloak, to work, manually link to the classes using:
<link rel="stylesheet" href="path/to/angular/angular-csp.css">
That's all there is to it.
OLD HACKY STUFF
Immediate fix, add this to your document head:
<style type="text/css">#charset "UTF-8";[ng\:cloak],[ng-cloak],[data-ng-cloak],[x-ng-cloak],.ng-cloak,.x-ng-cloak,.ng-hide:not(.ng-hide-animate){display:none !important;}ng\:form{display:block;}.ng-animate-shim{visibility:hidden;}.ng-anchor{position:absolute;}</style>
Ng-show and hide work by angular adding the class ng-hide to items that are hidden and removing it when they are shown.
Why doesn't it work in extensions?
Good question. For whatever reason (will update when I find the reason) chrome extensions prevent that style tag from being added to the head. It's probably some kind of security thingy, and there's probably a way to turn off that security bit, I'll update when I find out more.
You can debug chrome extension in chrome, just click right on extension popup. my guess is that angularjs isn't loaded or bootstraped in your extension, from my experience you should rather load angular from local files rather than CDN
I'm using parlsey validation and all is good. The problem is that if you partially load the website or load the website and click on "send" before everything is loaded, then parsley validation does not work.
Its not working because it hasn't been loaded. However, the validation script for parsley is in the header of the document? Is there a way to load a script before the website is loaded at all?
No that's not possible. If you place the JavaScript src in the head of the HTML document that's moste likely the only thing you can do. But that's not a good idea at all. JavaScript has to be placed before the closing body tag - at least until all Browsers and Servers are using SPDY.
The problem you are facing is caused by the way parsley works. While loading the page it will "scan" the HTML markup and search for parsley validation informations and apply bindings to them. It seems that this is not fully done.
What you can do is trying to avoid hitting a submit or what you use for submitting a form before the domready event is available. You could eg. set a submitt button for the form to disabled ...
I'm assuming the issue I'm having is related to caching. Code changes I make are not getting picked up when I debug. Most times I get served a previous version of the app. How do I prevent this from happening?
Ctrl+F5 is an easy way to refresh a page and clear the cache of that page at the same time - it may help :)
Try to add to the page that hosts Silverlight application on Page_Load:
Response.Cache.SetExpires(DateTime.Now.AddSeconds(-100));
Response.Cache.SetCacheability(HttpCacheability.NoCache);
Append a "version" querystring to your XAP Url, something like:
http://localhost:1234/ClientBin/my_silverlight_app.xap?v=1.0.287.5361
This will trick the browser (and many web servers) to think that this is a different file. And when the cache problem appears again, increase the number.
If you then want to employ proper caching, do it on the server-side with OutputCache directives.
As far as I see, this seems to be a problem with Firefox - when I used IE8, this didn't happen to me (I realize this may open its own can of worms, but at least for debugging and testing Silverlight, IE is much better)
I have not had any issues with Silverlight assemblies getting cached - you might want to try debugging the HTTP requests that go back and forth, to see if maybe your server is instead returning incorrect information to the browser (e.g. a "not modified" response).
For general no-cache behavior, the only reliable method I have found is to turn off caching in the browser.
For IE, this has been the only reliable option - otherwise, even if proper no-cache headers are sent, certain things are still cached (specifically, dynamically loaded resources which are accessed via Javascript XmlHttpRequest). I have not specifically had issues with Silverlight getting cached when it should not, though - IE has always loaded the latest updates even if cache is enabled.
Firefox has been much more problematic - even when disabling cache, it still sometimes caches XmlHttpRequest-loaded resources. Manually hitting Refresh a few times has been the only solution in such a case. Once again, I have had no issues with Silverlight assembles, even if cache is turned on.
In Firefox, I use the 'web developer' plugin and simply select to 'disable cache'. Works fine.
Firefox 3.5 under Tools has the option for Private Browsing. Click that to disable caching.
Here is how I have done it for flex/flash and silverlight and it works.
Code Behind ASPX or CSHTML
string slUrl = "/ClientBin/MySilverlight.xap";
string filePath = Server.MapPath(slUrl);
FileInfo info = new FileInfo(filePath);
// this will force browser to
// re download file if file was
// updated
slUrl += "?t=" + info.FileWriteTime.Ticks;
ASPX or CSHTML
<embed ....
src="<%= slUrl %>"
..
/>
Trick is you have to change url by adding something after ? and make a new arbitrary random query string or use file write time, and for browser, something?t=1 and something?t=2 are two urls and it will not pickup cache if t changes.
Instead of write time, you can also choose any standard config value or you can even simply hardcode your ASPX or HTML and append something after ? that will force browsers to download silverlight xap file again.
<embed ....
src="/ClientBin/MySilverlight.xap?something-different-each-time"
...
/>