I am trying to download the authorization page for VK.COM, but keep getting a white browser window. In that case loadFinished(bool). Code for example:
QWebView* view = new QWebView;
view->load (QUrl ("https://oauth.vk.com/authorize?client_id=1234567&scope=wall,offline&redirect_uri=http://oauth.vk.com/blank.html&display=page&response_type=token"));
view->show ();
If I change the web address (vk.com for example), the site is displayed normally. I don't understand why load() doesn't work normally with query to VK API. I am using Qt 5.0.2.
This code works on QT 4
It often happens when server returns anything but 200 status code. In your case there is "401 - Unauthorized" status code.
This link might be helpful for you: http://www.qtcentre.org/threads/37122-Detecting-finished-download-of-HTML-content-for-QWebView
Related
I have a small Pyramid application that by default used the waitress web server when I set it up. However I am now trying to switch to CherryPy since it works much better with sse.
But for uncaught exceptions I got a 500 error page with content in waitress, but using cherrypy the pages are just blank (the status is correctly 500 though).
The only thing I did to switch was to change the line:
use = egg:waitress#main
to
use = egg:pyramid#cherrypy
In the documentation for CherryPy I can read that I can set a custom error message for an unanticipated error. Tried that out but I saw no effect at all, the function is never called - I even tried to add a breakpoint to CherryPy's internal error response but it was not hit either.
I suspect something else is wrong though since I assume CherryPy should show "something" by default for a 500 page ?
I have attempted to reproduce the issue using the starter scaffold that comes with Pyramid, and made the following modification to the existing views.py that it comes with:
from pyramid.view import view_config
from pyramid.httpexceptions import HTTPInternalServerError
#view_config(route_name='home', renderer='templates/mytemplate.pt')
def my_view(request):
raise HTTPInternalServerError()
On both CherryPy and waitress this returns a page with the HTTPInternalServerError() on it including the text.
Changing the raise to:
raise ValueError('test')
However only shows something on the page if the pyramid_debugtoolbar is enabled, and the user accessing the URL is allowed to see the pyramid_debugtoolbar (this is controlled by the hosts setting for pyramid_debugtoolbar).
CherryPy does not have its own text. Unfortunately I don't see a way to use the _cp_config method of enabling custom error messages, as there is no way to set it up on the HTTP server that is used when using the CherrypyWSGIServer which is used by the Pyramid cherrypy entrypoint used by pserve.
What you can do, is set up a default exception view in Pyramid such as the following:
#view_config(context=Exception)
def exception_view(request):
request.response.status = 500
request.response.text = u'Something went very wrong. Sorry!'
return request.response
You can off course customise this exception view however you'd like. If this exception view raises however, you will be at the mercy of CherryPy who will serve you a blank page.
I'm developing a cross-platform browser extension, and have based all my code on the Chrome-way of doing this. I have counted on that the background page will be accessible from the options page, which in Safari extensions turns out to be not possible (since there is no such thing as an options-page). You can only access safari.extension.globalPage.contentWindow from within the extension popup, and the background page itself.
Now, I have an options page, which is an html-page within the extension bundle, and so far I haven't found a way for Safari to give it extension "rights". The closest I have come is adding a content script that's only added on the options page. This seems a bit silly, since the html page itself is in the extension bundle?!
Others have suggested using asynchronous ping-pong style message event handlers, and even the canLoad-mechanism (which is "only" able to run in a beforeload-event). I have been able to hack the canLoad-mechanism for synchronous messaging by forging the BeforeLoadEvent:
// Content script (run from anywhere)
var result = safari.self.tab.canLoad(new BeforeLoadEvent, "data")
-> "return value"
// Background page
safari.application.addEventListener('message', function(e) {
if ( e.name === "canLoad" )
e.message = "return value";
}, true);
It's a hack, but it works. However, I am crippled by the message transport serialization, since I need to be able access methods and data on my objects from the background page. Is there anyway around this?
Possible ways that might work but I don't know if possible:
Access options-page window-object from backgrounds page. Is that possible?
Message passing, need to bypass message serialization
Any shared/global object that I can attach objects to and fetch from the options page?
Make Safari run the options.html page from outside the content-script sandbox? It works in Chrome since they are both within the extension-bundle. It's quite annoying that safari doesn't do this too.
Run the options-page from within the popup. This is promising, but it crashes safari (which is very promising!). However, from the looks of it it's just something to do with a CSS animation in my options.html page. The biggest issue is that it has to be able to open an OAuth2 popup, but thanks to being able to programmatically open the popover, it might be a non-issue. However, this option is the most realistic, but I would rather have it open in a new tab.
Any suggestions and hackish workarounds would really help.
I've integrated Flattr with my Dotclear blog, using the appropriate plugin, and it works fine.
Except that, from time to time, some older posts have errors and I don't understand why.
See:
http://ploum.net/post/224-gpager-03-scenes-from-a-memory-finally-free
http://ploum.net/post/86-le-repas-de-noel-en-famille
those posts have nothing special and, yet, cannot be Flattered.
Could it be an issue on Flattr side ? Do you see what can cause that problem ?
Thanks in advance,
Seems like you're both using the new 0.6 version of the Flattr JavaScript API and a quite old 0.2 version. Using two versions at the same page can probably result in some pretty strange things - I would suggest just using the newer version that is documented here: https://flattr.com/support/integrate/js
Regarding why the button show an error - here's a bit of a secret way to find out: Look at the HTML for the button iframe and look within the div-tag with a "button-wrapper"-class - there you should find an HTML-comment that states the reason for the button error.
In your case the HTML-comment in the button iframe says "ERRORS: User couldn't be found and no owner specified." - which isn't strange since the iframe's URL has "0" specified as the uid-parameter - it should be a username instead.
Your script is disrupted by doublequotes in "var flattr_tle=", you should encode them with '"'
I have an asp.net mvc3 project, it has some reports in aspx web pages. Everything works great in 2-3 weeks ago, but now, when I open the reports pages in FireFox8 and Chrome 15, the reports can not be displayed correctly.
In FF8, report content can be shown, but looks like css doesn't loaded, and report head control look like this:
In Chrome15, report head looks fine but content isn't shown up. I can see it has correct contents when using Firebug to view those .
Since data can ben loaded to browser, I think it maybe a browser compatibility problem, am I right?
Does anyone seeing same issues? I'm open to any suggestions.
BTW:My report viewer's version is 10.0.0.0.
Thanks.
[Edit in 12/21/2011]
FireFox
After several research on this, I have noticed when browse in firefox, server will catch an [Microsoft.Reporting.WebForms.HttpHandlerInputException: Missing URL parameter: Name], and the query string is OpType=BackImage&Version=10.0.40219.329&Color=%23ECE9D8&Name=Microsoft.Reporting.WebForms.Icons.toolbar_bk.png; path_info is Reserved.ReportViewerWebControl.axd
This may be the reason why firefox can't show page with correct CSS.
I don't know why this happens in Firefox & Chrome, while in IE everything is fine.
I've found this link shows same excpetion: http://social.msdn.microsoft.com/Forums/eu/vsreportcontrols/thread/80ce3ee8-e65b-476c-b668-ecc8e83ea73d
But I'm not sure how did he solve this, can you or somebody else gives some tip or example code to solve this?
Chrome
When browse in chrome, I found the report data is loaded into DOM, and surronded by a with id="ReportViewer1_fixedTable". Inside that element, there's a div with id="ReportViewer1_ctl09" nested in , if I remove the "height: 100%", the report can be seen.
this link http://www.apptools.com/examples/tableheight.php, explained why this 100% cannot be rendered correctly, but I'm still failed when trying to give a fixed height via CSS, the code can't be pasted here, please see this as a reference.
Thanks.
In Chrome, it's the "height=100%" problem.
Once I add following jQuery code, the report area can ben shown.
$(function () {
$("#ReportViewer1_ctl09").css("height", "auto");
});
In FireFox, the report page raise an error as following:
"Microsoft.Reporting.WebForms.HttpHandlerInputException 缺少 URL 参数: Name"
and the Query String is: "OpType=BackImage&Version=10.0.40219.329&Color=%23ECE9D8&Name=Microsoft.Reporting.WebForms.Icons.toolbar_bk.png"
according to this article, I think it's caused by a proxy that handles http request..
I checked my request, there's a "FiftyOne ..." in "Brwoser" property of "Request" ojbect.
Since fifty one is no longer used in this project, I removed it from Bin and web config, then the report can be shown in FireFox!
Hope this article can be usefule to other guys.
I'm getting "This page contains bothe Secure and Non secure items"message in IE. When I commented the following piece of code from dojo.js.uncompressed.js file, the message is gone.
if(dojo.isIE){
if(!dojo.config.afterOnLoad){
document.write('<scr'+'ipt defer src="//:" '
+ 'onreadystatechange="if(this.readyState==\'complete\'){' + dojo._scopeName + '._loadInit();}">'
+ '</scr'+'ipt>'
);
}
Is that an issue with the dojo? I would like to move the commented code to another custom file so that the dojo framework is not affected. Can you suggest a better way of implementing it.
Thanks.
You would get that error if you're using frames or have external files where some of the files have https URLs while some have http URLs. Assuming, your main page loads up through https, you could try changing:
src="//:"
to:
src="https//:"
the //: is most likely the problem, as I ran into a similar issue with a chunk of javascript code... In internet explorer, the locaiton //: is not secure, so when your page (presumably on an https:// url) loads, IE notes that you've got your main code loading from a secure location, and another script being loaded in from an unsecure location.
The workaround that I came to was to create an empty file in my web root named "blank.html" (though "blank.js" would probably work better in your case) and replace the //: link with "/blank.html". This results in another hit to your webserver, but browser caching will probably make that impact minimal.