Describe the bug
The notification plugin does not support "http" urls for the notification channels like Webhook. The alerting plugin already supports this and breaks functionality when integrating with notification plugin.

To Reproduce
N/A

Expected behavior
The notification plugin should support "http" urls.

Plugins
Please list all plugins currently enabled.

Screenshots
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Host/Environment (please complete the following information):

• OS: [e.g. iOS]
• Version [e.g. 22]

Additional context
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