Comments (6)
This is telling you that you've found a bug that could be a race condition in a multi-threaded environment.
The solution is to not lazy initialise that parameter, or to implement your own freeze and call that function before freezing the object.
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Assuming that this is fixed/no longer relevant.
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@PikachuEXE How did you get it fixed?
I'm getting a similar exception.
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You would need to track down the code which is trying to modify something which should be frozen - if it's shared between workers/threads it will be a race condition.
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The code in the stacktrace is inside the rails engine. I'm getting it as well w/o any mounted engines or added middleware. Does this mean vanilla rails can't work the rack_freeze gem?
I'm running rails 5 (for now), but rails 6 also does ||= for env_config in engine.rb at:
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using rails 5 or 6:
rails new foo
cd foo
bundle add rack-freeze
rails s
go to localhost 3000 and see a frozen string error
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Related Issues (6)
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