Mocking AudioContext by injecting Javascript

[prokls]

Hi,

I have the following usecase: I want to test a software which uses the AudioContext object. I would like to mock it. Be aware that AudioContext is used in the global scope by this software ("audio = new AudioContext()"). So I want to inject Javascript when the first <script> tag was read, but none is executed yet. Now several approaches came to my mind:

• Using an event such as onInitialized combined with injectJS to inject javascript code. I tried several approaches, but none provided the correct event.
• Intercept the onResourceReceived event and add the javascript code to the body of the response. This does not work, because the response body is not modifiable (yet?).

I would really prefer approaches which do not require additional libraries or additional setup. Do you have any suggestions for this usecase?

• SO thread discussing the same issue

[stale]

Due to our very limited maintenance capacity, we need to prioritize our development focus on other tasks. Therefore, this issue will be automatically closed (see #15395 for more details). In the future, if we see the need to attend to this issue again, then it will be reopened. Thank you for your contribution!