B4J Question b4j does not open an https ssl site, what to do?

Xfood

Xfood

Expert
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Longtime User
Good morning,
and for 2 days I've been trying to open this site from b4j with webview, I've tried all the possible settings found on the forum, but the page doesn't open, could someone check why?
Thanks
WebView1.LoadURL("https://cloud.profimax.it")
 
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it is not related to b4j.

The site does not open in a webbrowser too.
 
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I can confirm it opens in Edge
*
1747154885090.png
 
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This may be of help:

Webview & Certificate Lets encrypt

Hello, i will open an SSL Page witch has a Let's encrypt Certificate but nothing happens if i load : webview1.LoadUrl("https://www.siam-net.de") or webview1.LoadUrl("https://smarthome.iokz.de") nothing happens.. no error... no page .. nothing if i load...
www.b4x.com www.b4x.com
 
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I can open my web site that is encrypted using Let's Encrypt with a B4j Webview, Let's encrypt is not the specific cause. That's not to say that it's configuration or integration with something else on the page is not causing it.
 
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Possibly
B4X: 
YourWebView.As(JavaObject).RunMethodJO("getEngine",null).RunMethod("setUserAgent",Array("my webview"))

(not tested)
 
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Daestrum said:
Possibly
B4X: 
YourWebView.As(JavaObject).RunMethodJO("getEngine",null).RunMethod("setUserAgent",Array("my webview"))

(not tested)
Click to expand...
unfortunately it doesn't work,
I tried your suggestion like this

B4X: 
WebView1.As(JavaObject).RunMethodJO("getEngine",Null).RunMethod("setUserAgent",Array("WebView1"))
WebView1.LoadURL("https://cloud.profimax.it/")

I tried it like this too, but it doesn't work
B4X: 
    WebView1.As(JavaObject).RunMethodJO("getEngine",Null).RunMethod("setUserAgent",Array("Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36 Edge/12.246"))
    WebView1.LoadURL("https://cloud.profimax.it/")
the page remains blank
1747201695666.png
 
Last edited:
Upvote 0
Daestrum said:
Possibly
B4X: 
YourWebView.As(JavaObject).RunMethodJO("getEngine",null).RunMethod("setUserAgent",Array("my webview"))

(not tested)
Click to expand...
What JRE/JDK are you running?

A few years back my application stopped working with a site as the site switched to their certificates to the Google CA which wasn’t in JRE store. Updating the JRE resolved the issue.

Java has a list of trusted CA (certificate authorities) which can become out of date.
 
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test.

B4X: 
    #PackagerProperty: VMArgs = --add-opens java.base/sun.security.ssl=b4j
    #PackagerProperty: IncludedModules = jdk.crypto.ec
B4X: 
Sub AppStart (Form1 As Form, Args() As String)
    MainForm = Form1
    SetSystemProperty("jdk.tls.client.protocols","TLSv1,TLSv1.1,TLSv1.2")
    SetSystemProperty("deployment.security.TLSv1.2","true")
    SetSystemProperty("https.protocols","TLSv1.2")
'    MainForm.Show
    Dim PagesManager As B4XPagesManager
    PagesManager.Initialize(MainForm)
End Sub

1747219770062.png
 
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TILogistic said:
test.

B4X: 
    #PackagerProperty: VMArgs = --add-opens java.base/sun.security.ssl=b4j
    #PackagerProperty: IncludedModules = jdk.crypto.ec
B4X: 
Sub AppStart (Form1 As Form, Args() As String)
    MainForm = Form1
    SetSystemProperty("jdk.tls.client.protocols","TLSv1,TLSv1.1,TLSv1.2")
    SetSystemProperty("deployment.security.TLSv1.2","true")
    SetSystemProperty("https.protocols","TLSv1.2")
'    MainForm.Show
    Dim PagesManager As B4XPagesManager
    PagesManager.Initialize(MainForm)
End Sub

View attachment 164049
Click to expand...
Thank you, I'm out now, tonight I'll try and let you know
 
Upvote 0
It looks like it's unable to make a first sort of redirect.
Using the already complete URL
B4X: 
https://cloud.profimax.it/auth/realms/Profimax/protocol/openid-connect/auth?client_id=website&redirect_uri=https%3A%2F%2Fcloud.profimax.it%2Fit&state=9643d1a9-ec3e-46bc-a6d6-fe696b77d6bc&response_mode=fragment&response_type=code&scope=openid&nonce=afec59d6-cf23-458a-af9f-d462b9c34628&code_challenge=wTOlLqgyerZ5mH1J1TWwhjc9hfmZT3gQpI0ly3BqggA&code_challenge_method=S256
it works
profi.jpg

But I understand that it's not the desired result and that maybe the url can change from session to session.
 
Upvote 0
Sagenut said:
It looks like it's unable to make a first sort of redirect.
Using the already complete URL
B4X: 
https://cloud.profimax.it/auth/realms/Profimax/protocol/openid-connect/auth?client_id=website&redirect_uri=https%3A%2F%2Fcloud.profimax.it%2Fit&state=9643d1a9-ec3e-46bc-a6d6-fe696b77d6bc&response_mode=fragment&response_type=code&scope=openid&nonce=afec59d6-cf23-458a-af9f-d462b9c34628&code_challenge=wTOlLqgyerZ5mH1J1TWwhjc9hfmZT3gQpI0ly3BqggA&code_challenge_method=S256
it works
View attachment 164053
But I understand that it's not the desired result and that maybe the url can change from session to session.
Click to expand...
That's right, why does this happen?
 
Upvote 0
TILogistic said:
test.

B4X: 
    #PackagerProperty: VMArgs = --add-opens java.base/sun.security.ssl=b4j
    #PackagerProperty: IncludedModules = jdk.crypto.ec
B4X: 
Sub AppStart (Form1 As Form, Args() As String)
    MainForm = Form1
    SetSystemProperty("jdk.tls.client.protocols","TLSv1,TLSv1.1,TLSv1.2")
    SetSystemProperty("deployment.security.TLSv1.2","true")
    SetSystemProperty("https.protocols","TLSv1.2")
'    MainForm.Show
    Dim PagesManager As B4XPagesManager
    PagesManager.Initialize(MainForm)
End Sub

View attachment 164049
Click to expand...
just tried it, unfortunately it doesn't work,
there's a blank page
1747243413262.png



1747243516716.png
 
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