Display diagnostics in text format for xhr request #14745
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rafaelfranca
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Apr 15, 2014
Display diagnostics in text format for xhr request
tijmenb
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Nov 3, 2015
When a request is made with AJAX and an error occurs, Rails will render a text-template for the exception instead of the HTML error page (rails#11960). The `.text.erb` variant of the `_source` template is currently missing, causing HTML to be rendered in the response. This commit adds the text template. To keep the page scannable we only only show the first three source extracts. Related to rails#14745. Before: ``` ~/testing-exceptions ᐅ curl 'http://localhost:3000/' -H 'X-Requested-With: XMLHttpRequest' RuntimeError in PostsController#index <div class="source " id="frame-source-0"> <div class="info"> Extracted source (around line <strong>rails#3</strong>): </div> <div class="data"> <table cellpadding="0" cellspacing="0" class="lines"> <tr> ``` After: ``` ~/testing-exceptions ᐅ curl 'http://localhost:3000/' -H 'X-Requested-With: XMLHttpRequest' RuntimeError in PostsController#index Extracted source (around line rails#3): *3 raise ```
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When non ActionController errors (e.g. ActiveRecord::NotFound) is raised in controller's
detailed exception (xhr.responseText) is rendered like this:
This fixes it by using standard .text template
Initial idea in #11960