The patch fixes pgAdmin on IE. In my patch for #5133, I had made some changes in backgrid-select-all.js in vendor directory. It turns out, vendor directory is excluded from webpack compiling. I used ES6 code syntax which does not work on IE.
Code changes are done to use ES5 syntax.
Please review.
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Thanks and Regards,
Aditya Toshniwal
pgAdmin Hacker | Sr. Software Engineer | EnterpriseDB India | Pune