fix(ios): headers are not being sent

[christiaan]

Platforms affected

iOS

Motivation and Context

The call to evaluateJavaScript is not blocking resulting in the headers being set on the request after it is already sent.

fixes #285

Description

Both the android and windows native code do not set the user-agent header. The user can still set the user-agent header by sending it from javascript.

Testing

I've changed these lines in our application because our FileTransfer uses a Authorization header that was not being sent anymore. After this change the request succeeds again.

Checklist

• [ ] I've run the tests to see all new and existing tests pass
• [ ] I added automated test coverage as appropriate for this change
• [x] Commit is prefixed with (platform) if this change only applies to one platform (e.g. (android))
• [ ] If this Pull Request resolves an issue, I linked to the issue in the text above (and used the correct keyword to close issues using keywords)
• [ ] I've updated the documentation if necessary

[christiaan]

@timbru31 is there anything I can do to move this forward?

[timbru31]

Not really, I haven't found any time to test this yet. I'll try to do so over the weekend.

[FD-DEV-IT]

When will version 2.0.0 be completed?

[timbru31]

"when it's done" - we do not give ETAs

[joergHX277]

@timbru31 Hi Tim, it would be amazing if you could fix the issue below sometime soon. I would appreciate that a lot. Best Jörg

fix(ios): re-implement user agent overwrite #268 File upload breaking with Error code - 3 When updated from v1.7.2-dev to 2.0.0-dev #285

[HarelM]

Thanks! @timbru31