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Can't find variable Page_ClientValidate in Safari

I have a ASP.NET 2.0 webpage with 3 server controls: RequiredFieldValidator, textbox, and button.`

Button uses OnClientClick to call a JavaScript function for validation using Page_ClientValidate().

This page works fine with Chrome, IE, Firefox, Safari (5.1.7 on Windows). It has stopped working with modern Safari versions - 8.0 in Yosemite and Mobile Safari on iOS 8.

I see this exception in the Inspect Element area:

"ReferenceError: Can't find variable: Page_ClientValidate"

How can this be fixed?

Solved

This sounds like a duplicate of this problem:

iOS 8 / Safari 8 not working with ASP.NET AJAX-Extensions

Another solution that modifies the web.config instead of the mozill: ReferenceError: Can't find variable: ValidatorEnable in Safari


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