This site can’t provide a secure connection - asp.net

Question

When I added the URL rewrite code in web.config and then publish it into azure. it will automatically redirects to https even I am trying to access website with http.
<rewrite>
<rules>
<rule name="Redirect to https">
<match url="(.*)"/>
<conditions>
<add input="{HTTPS}" pattern="Off"/>
</conditions>
<action type="Redirect" url="https://{HTTP_HOST}/{R:1}"/>
</rule>
</rules>
</rewrite>
But when I run the same code in my local machine it gives the below error.
This site can’t provide a secure connection
How can I resolve the above error when I run the above code in my local machine?

Answer 1

What I do personally is put that rewrite configuration into Web.Release.config precisely because it is a bit fiddly to get it working locally.
The problem is that IIS Express will expose HTTP and HTTPS on different ports, so if you redirect from http://localhost:1234 to https://localhost:1234, it simply won't work, because IIS Express is exposing HTTPS on something like https://localhost:44300.
You can enable SSL/TLS on IIS Express (and you should), but I would leave the rewrite rule only for Release mode.
Here is an example Web.Release.config file:
<?xml version="1.0"?>
<configuration xmlns:xdt="http://schemas.microsoft.com/XML-Document-Transform">
<system.web>
<compilation xdt:Transform="RemoveAttributes(debug)" />
</system.web>
<system.webServer>
<rewrite xdt:Transform="Insert">
<rules>
<!-- Redirects users to HTTPS if they try to access with HTTP -->
<rule
name="Force HTTPS"
stopProcessing="true">
<match url="(.*)"/>
<conditions>
<add input="{HTTPS}" pattern="^OFF$" ignoreCase="true"/>
</conditions>
<action
type="Redirect"
url="https://{HTTP_HOST}/{R:1}"
redirectType="Permanent"/>
</rule>
</rules>
<outboundRules>
<!-- Enforces HTTPS for browsers with HSTS -->
<!-- As per official spec only sent when users access with HTTPS -->
<rule
xdt:Transform="Insert"
name="Add Strict-Transport-Security when HTTPS"
enabled="true">
<match serverVariable="RESPONSE_Strict_Transport_Security"
pattern=".*" />
<conditions>
<add input="{HTTPS}" pattern="on" ignoreCase="true" />
</conditions>
<action type="Rewrite" value="max-age=31536000" />
</rule>
</outboundRules>
</rewrite>
</system.webServer>
</configuration>
Note that I also add HSTS here. It inserts the <rewrite> element into Web.config in Release mode. The <system.webServer> element already exists in Web.config, otherwise I would be inserting that.

Answer 2

This always solves the issue for me.
In Solution Explorer, click your project.
Hit the F4 key (view properties).
Copy the URL (NOT the SSL URL).
Paste the URL into the Project Url on the Web Tab, Save.
In Solution Explorer, click your project.
Hit the F4 key (view properties).
Change SSL Enabled to false.
Change it back to true. There should be a new SSL URL. Copy it.
Paste the new SSL URL into Project URL on Web tab. Click Create Virtual Directory.
Click Override application root URL, and paste in SSL URL. Save.

Answer 3

You will have to configure Visual Studio Server to be used with HTTPS.
Please go through this link for details:
HTTPS with Visual Studio's built-in ASP.NET Development Server

Answer 4

I solved this problem with older version of Chrome web browser.
This is the list of older chrome versions where you can download and install it.
60.0.3112.90 - for Ubuntu is the version that works just fine for me.
Maybe it's little slower then newer versions but i found it's pretty good for production (:

Answer 5

On my end, I found out that there was a javascript code that redirects the site from http to https. So try to explore your environment if there are other code responsible for that issue. Hope this can help. Thanks

Answer 6

I just changed the URL in the Web tab of the project properties to use a PORT that starts with 443, e.g. 44301. Also be sure to change http to https. It works for me.