Prabhjyot Singh created AMBARI-26561:
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Summary: Ambari UI Fails to Display Hosts
Key: AMBARI-26561
URL: https://issues.apache.org/jira/browse/AMBARI-26561
Project: Ambari
Issue Type: Bug
Components: ambari-web
Affects Versions: 2.7.9
Reporter: Prabhjyot Singh
Assignee: Prabhjyot Singh
After upgrading *jQuery to 3.7.1* and updating {{{}jquery-migrate.js{}}}, the
Ambari UI fails to render the *Hosts* page.
The failure occurs because {*}{{$.browser}} was removed from jQuery starting
from version 1.9{*}, and the legacy plugin code in {{jquery.typeahead.js}}
still depends on browser detection logic like {{{}$.browser.chrome{}}}.
This results in a runtime error and breaks initialization of the Typeahead
component.
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h2. *Error Trace:*
Uncaught TypeError: Cannot read properties of undefined (reading 'chrome')
at Typeahead.listen (vendor.js:71966:21)
at new Typeahead (vendor.js:71828:10)
at HTMLInputElement.<anonymous> (vendor.js:72061:50)
at ce.each (vendor.js:316:26)
at obj.<computed>.each (vendor.js:205:19)
at $.fn.typeahead (vendor.js:72057:17)
at Class.didInsertElement (app.js:211853:30)
at Class.newFunc [as didInsertElement] (vendor.js:9028:16)
at Class.trigger (vendor.js:21579:21)
at Class.newFunc [as trigger] (vendor.js:9028:16)
{{}}
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h2. *Root Cause:*
* The plugin located at:
*{{ambari-web/vendor/scripts/jquery.typeahead.js}}*
uses {*}deprecated browser sniffing{*}:
if ($.browser.chrome) \{ ... }
* {{$.browser}} does *not exist* in jQuery ≥ 1.9 and is *fully removed* by 3.x.
* The jQuery Migrate plugin no longer restores {{$.browser}} as of modern
versions.
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