I found issue in ShopifySharp in method ParseRawQuerystring.It ignores url get parameters with empty value. For example: logged_in_customer_id= Solution description in git

I have a couple Proxy apps. One for QA one for developing.Today suddenly both Apps stopped validate signature.I didn't change code. I'm using ShopifySharp library for my project. Please help me with any idea 

Hello You want use some header, but all data to calculate signature live in get in URL query parameters.You should use this guide to calculate signature.https://shopify.dev/apps/online-store/app-proxies#calculate-a-digital-signature