msmtamburro opened a new pull request, #1272:
URL: https://github.com/apache/cordova-ios/pull/1272

   note: works around, rather than addresses existing architectural issues 
(#1031)
   note: should be reviewed after merging this related PR 
https://github.com/apache/cordova-ios/pull/1050
   
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   ### Platforms affected
   
   cordova-ios
   
   ### Motivation and Context
   <!-- Why is this change required? What problem does it solve? -->
   <!-- If it fixes an open issue, please link to the issue here. -->
   
   This is related to https://github.com/apache/cordova-ios/pull/1031, in that 
I noticed the existing looping/reflection pattern in CDVWebViewEngine was 
copied, and I wanted to provide an example of how to allow consumers to 
explicitly be delegates, so that pattern, which crashes, does not make its way 
in to other pieces of code.
   
   ### Description
   <!-- Describe your changes in detail -->
   
   The existing behavior, that CDVViewController can be a WKNavigationDelegate, 
was not obvious, so I documented it.  While it would be more explicit to set 
the navigation delegate in the designated initializer (like is done with the 
WKWebViewConfiguration), I did not want to drastically change what's being done 
here.   The existing behavior also loops through the plugins and uses 
reflection to see if any handle specific WKNavigationDelegate methods.  The way 
this is done can crash (is crashing in my production app), as the list of 
plugins can change while this loop iterates.
   
   What I did change:
   - When a consumer has bothered to extend CDVViewController to be a 
WKNavigationDelegate, I've disabled the looping
   - I cleaned up the looping to make it less likely to crash
   
   ### Testing
   <!-- Please describe in detail how you tested your changes. -->
   
   I've tested the existing behavior:
   - Overriding does not disable looping
   - Looping does not appear to crash
   
   I've tested the new behavior:
   - Looping is disabled when overriding (making CDVViewController a 
WKNavigationDelegate)
   
   ### Checklist
   
   - [ ] I've run the tests to see all new and existing tests pass
   - [ ] I added automated test coverage as appropriate for this change
   - [ ] Commit is prefixed with `(platform)` if this change only applies to 
one platform (e.g. `(android)`)
   - [x] 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](https://help.github.com/articles/closing-issues-using-keywords/))
   - [ ] I've updated the documentation if necessary
   


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