Undefined variable: http_response_header

[ischenko]

What steps will reproduce the problem?

Use HTTP client with yii\httpclient\StreamTransport transport and try to open any local file via file:/// scheme

What's expected?

A content of given file.

What do you get instead?

yii\httpclient\Exception: Undefined variable: http_response_header

Additional info

Q	A
Yii version	2.0.38
Yii HTTP Client version	2.0.12
PHP version	7.4.10
Operating system	Ubuntu 18.04

[yii-bot]

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• What do you see?
• What was the expected result?
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