👷‍♀️ [RUM-6424] Change webpack chunk config to speed up local unit te…

…sts (#3057)

* 👷‍♀️ Remove split Chunk false for webpack

* 👷‍♀️ only remove splitChunk with scope  command

* Remove splitchunk by default locally

* remove `splitChunks` everywhere

Somehow, even if we exclude `developer-extension` sources in
browser-stack karma configuration, they still end up in the bundle. In
those sources, we used a Regexp syntax unsupported in older browsers.

This commit work around this issue by using the `new RegExp` constructor
instead of the regexp syntax.

---------

Co-authored-by: Benoît Zugmeyer <benoit.zugmeyer@datadoghq.com>

developer-extension/src/panel/hooks/useEvents/eventFilters.ts

@@ -81,7 +81,7 @@ function filterOutdatedVersions(events: SdkEvent[]): SdkEvent[] {
 
 export function parseQuery(query: string) {
   const queryParts = query
-    .split(/(?<!\\)\s/g) // Hack it to escape whitespace with backslashes
+    .split(new RegExp('(?<!\\\\)\\s', 'g')) // Hack it to escape whitespace with backslashes. Use a regex constructor to avoid syntax errors in older browsers
     .filter((queryPart) => queryPart)
     .map((queryPart) => queryPart.split(':'))
 

test/unit/karma.base.conf.js

@@ -56,7 +56,6 @@ module.exports = {
       // with all dependencies shared.  Our test suite does not support sharing dependencies, each
       // spec bundle should include its own copy of dependencies.
       runtimeChunk: false,
-      splitChunks: false,
     },
     ignoreWarnings: [
       // we will see warnings about missing exports in some files