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Throw if ujs loaded twice

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I saw two posts of problem about ajax requesting twice on qiita.
So I think detecting double loaded earlier make easy to find the problem.

https://qiita.com/hot_study_man/items/56dc87ad734cfda68bb6
https://qiita.com/hisas/items/8399aec3a5377bf75017
This commit is contained in:
Kazuhiro NISHIYAMA 2018-07-31 22:16:02 +09:00
parent 0f5497499c
commit 9df747c9f0
1 changed files with 2 additions and 1 deletions
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3
actionview/app/assets/javascripts/rails-ujs/start.coffee
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@ -9,7 +9,8 @@
} = Rails } = Rails
# For backward compatibility # For backward compatibility
if jQuery? and jQuery.ajax? and not jQuery.rails if jQuery? and jQuery.ajax?
throw new Error('If you load both jquery_ujs and rails-ujs, use rails-ujs only.') if jQuery.rails
jQuery.rails = Rails jQuery.rails = Rails
jQuery.ajaxPrefilter (options, originalOptions, xhr) -> jQuery.ajaxPrefilter (options, originalOptions, xhr) ->
CSRFProtection(xhr) unless options.crossDomain CSRFProtection(xhr) unless options.crossDomain