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A certificate error occured Options
kdlbj__
Posted: Thursday, July 23, 2015 6:53:33 AM
Rank: Newbie
Groups: Member

Joined: 7/20/2015
Posts: 2
A certificate error occured.

I wrote a program with EOWebBrowser, and a message "A certificate error occured, please Handle CertificateError event" shows when current webview has flashplayers.

How to resolve this problem? To override the CertificateError event or other way?
eo_support
Posted: Thursday, July 23, 2015 4:38:25 PM
Rank: Administration
Groups: Administration

Joined: 5/27/2007
Posts: 19,499
Hi,

The message is already very clear --- you need to handle the WebView's CertificateError event. See here for more information about this event:

http://www.essentialobjects.com/doc/eo.webbrowser.webview.certificateerror.aspx

Thanks!
kdlbj__
Posted: Friday, July 24, 2015 12:54:03 AM
Rank: Newbie
Groups: Member

Joined: 7/20/2015
Posts: 2
eo_support wrote:
Hi,

The message is already very clear --- you need to handle the WebView's CertificateError event. See here for more information about this event:

http://www.essentialobjects.com/doc/eo.webbrowser.webview.certificateerror.aspx

Thanks!


so.... i can't play flash in the webView page?
eo_support
Posted: Friday, July 24, 2015 10:32:21 AM
Rank: Administration
Groups: Administration

Joined: 5/27/2007
Posts: 19,499
Hi,

You may want to ask someone around you to explain things to you a bit because:

1. CertificateError has no direct relationship with Flash;
2. The above link have already clearly told you what to do in case of a certificate error but you do not seem to have any idea what it is about. You need to have the ability to understand basic code and documentation in order to use our product.

You can find more information about using Flash here:

http://www.essentialobjects.com/doc/webbrowser/advanced/plugin.aspx

Thanks
tmigh
Posted: Thursday, July 27, 2017 4:55:27 PM
Rank: Newbie
Groups: Member

Joined: 1/16/2016
Posts: 7
Solution is easy:

You just say "e.Continue":

(VB.NET code)

Private Sub MyWebView_CertificateError(sender As Object, e As CertificateErrorEventArgs) Handles MyWebView.CertificateError

e.Continue()

End Sub

This will simply make the error message go away, but you should of course investigate why you get this error.
But this error doesn't have anything to do with this product, even Firefox and Chrome will receive this error. These browser handle this error in some form as well.
Juha
Posted: Tuesday, August 8, 2017 8:27:43 AM
Rank: Newbie
Groups: Member

Joined: 8/8/2017
Posts: 3
There seems to be somekind of certificate error problem in the v17 that does not occur at least in the v16.2.93.0

For example if you login to the secure Atlassian Jira dashboard web page, the WebView start to throw following certificate error.

ErrorCode: -214
ResourceType: StyleSheet
Url: "https://d2vj1jlnoa5x8o.cloudfront.net/.atlassian.net/s/d41d8cd98f00b204e9800998ecf8427e-CDN/jfcb7b/b/c/f6df4375b0285607fb48b19c0affddeb/_/download/contextbatch/css/_super/batch.css?relative-url=true"

Which is kind of weird because EO.WebBrowser.ErrorCode enum does not have -214 as listed ErrorCode.

This problem can be replicated with the TabbedBrowser sample application also.


eo_support
Posted: Thursday, August 10, 2017 2:48:53 PM
Rank: Administration
Groups: Administration

Joined: 5/27/2007
Posts: 19,499
Hi Juda,

This is a know issue in the version of Chromium browser engine we use related to certificate transparency. The issue has already been fixed by Chromium team and we will apply the fix in our next build. In the mean time, you can handle CertificateError event as tmigh has suggested in the previous post.

Thanks!
eo_support
Posted: Friday, August 11, 2017 6:45:44 PM
Rank: Administration
Groups: Administration

Joined: 5/27/2007
Posts: 19,499
Hi,

This is just to let you know that we have posted a new build that should resolve this issue. You can download the new build from our download page. Please take a look and let us know how it goes.

Thanks!
Juha
Posted: Monday, August 14, 2017 1:37:06 AM
Rank: Newbie
Groups: Member

Joined: 8/8/2017
Posts: 3
Hi,

Looks like the v17.2.43 solves these certificate error problems.

Thanks.

eo_support
Posted: Monday, August 14, 2017 7:40:55 AM
Rank: Administration
Groups: Administration

Joined: 5/27/2007
Posts: 19,499
Glad to hear that. Thanks for confirming the fix!


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