Slave client (content1 = & quot; & lt; img src = & quot;/web/news /... & quot;) detected a potentially dangerous Request. form value ., Potential detected from the client

A potentially dangerous Request. Form value is detected from the client (content1 = "

When adding images to the html editor for submission

A potentially dangerous Request. Form value is reported from the client (content1 = "

I searched online for information.

There are two methods

Method 1:

Modify the Web. Config file:
<Configuration>
<System. web>
<Pages validateRequest = "false"/>
</System. web>
</Configuration>

Method 2:

On the. aspx page, add:
<% @ Page validateRequest = "false" %>

But it still doesn't work. I'm depressed. I thought about it later. I used. net 4.0 and needed to add a sentence in web. config.

<Configuration>
<System. web>
<HttpRuntime requestValidationMode = "2.0" type = "codeph" text = "/codeph"/>
</System. web>
</Configuration>

The problem is solved!