Skip to content

Bits of .NET

Daily micro-tips for C#, SQL, performance, and scalable backend engineering.

  • Asp.Net Core
  • C#
  • SQL
  • JavaScript
  • CSS
  • About
  • ErcanOPAK.com
  • No Access
Ajax / JavaScript

AJAX Requests Timeout Randomly — Browser Connection Limits

- 15.12.25 | 15.12.25 - ErcanOPAK

Browsers limit concurrent connections per domain.

✅ Fix

Throttle requests or queue them:

await Promise.allSettled(queue.map(run));

Especially important for

  • dashboards

  • batch uploads

Related posts:

JavaScript Objects Grow Without You Noticing

How to solve ajax.reload() not working for DataTables in JS File

JS “await” Inside forEach Is a Bug

Post Views: 5

Post navigation

JS “Undefined Is Not Null” — The Bug That Breaks APIs
Windows 11 Slow Boot After Updates — Startup App Priority

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

January 2026
M T W T F S S
 1234
567891011
12131415161718
19202122232425
262728293031  
« Dec    

Most Viewed Posts

  • Get the User Name and Domain Name from an Email Address in SQL (923)
  • How to add default value for Entity Framework migrations for DateTime and Bool (811)
  • Get the First and Last Word from a String or Sentence in SQL (808)
  • How to select distinct rows in a datatable in C# (784)
  • How to make theater mode the default for Youtube (659)
  • Add Constraint to SQL Table to ensure email contains @ (561)
  • How to enable, disable and check if Service Broker is enabled on a database in SQL Server (544)
  • Average of all values in a column that are not zero in SQL (510)
  • How to use Map Mode for Vertical Scroll Mode in Visual Studio (455)
  • Find numbers with more than two decimal places in SQL (425)

Recent Posts

  • C# String Operations Hurt Performance
  • C# DateTime Bugs Appear Across Servers
  • C# LINQ Queries Allocate Too Much
  • SQL Deadlocks Appear Sporadically
  • SQL Queries Break After Schema Changes
  • .NET Core Logs Impact Performance
  • ASP.NET Core Startup Becomes Slower
  • Git Branches Linger Forever
  • Git History Becomes Hard to Read
  • Ajax Requests Succeed but Data Is Stale

Most Viewed Posts

  • Get the User Name and Domain Name from an Email Address in SQL (923)
  • How to add default value for Entity Framework migrations for DateTime and Bool (811)
  • Get the First and Last Word from a String or Sentence in SQL (808)
  • How to select distinct rows in a datatable in C# (784)
  • How to make theater mode the default for Youtube (659)

Recent Posts

  • C# String Operations Hurt Performance
  • C# DateTime Bugs Appear Across Servers
  • C# LINQ Queries Allocate Too Much
  • SQL Deadlocks Appear Sporadically
  • SQL Queries Break After Schema Changes

Social

  • ErcanOPAK.com
  • GoodReads
  • LetterBoxD
  • Linkedin
  • The Blog
  • Twitter
© 2026 Bits of .NET | Built with Xblog Plus free WordPress theme by wpthemespace.com