Chrome Extension. Background JS, AJAX Requests, DNS Lookup and SSL handshake Times
I have a background script that makes repeated AJAX requests to an Amazon S3 storage bucket.
I've noticed that each time a new request is made to a different object in the same bucket, the background script is having to wait for the DNS lookup (~50ms) and SSL handshake (~80ms).
For some reason I cannot identify, the background script has no memory that it has made previous requests to the same Amazon S3 server / bucket.
I have tried to solve this by adding a preconnect link to the top of the background page - this has no effect. Pinging it with a head request will not actually save me any time.
Any ideas from Chrome Extension wizards?
google-chrome-extension asked Nov 13 '18 at 11:16
TomTom
2901215
add a comment |
I have a background script that makes repeated AJAX requests to an Amazon S3 storage bucket.
I've noticed that each time a new request is made to a different object in the same bucket, the background script is having to wait for the DNS lookup (~50ms) and SSL handshake (~80ms).
For some reason I cannot identify, the background script has no memory that it has made previous requests to the same Amazon S3 server / bucket.
I have tried to solve this by adding a preconnect link to the top of the background page - this has no effect. Pinging it with a head request will not actually save me any time.
Any ideas from Chrome Extension wizards?
google-chrome-extension asked Nov 13 '18 at 11:16
TomTom
2901215
Sounds like a quirk/bug in Chrome. Is it any different when performed from a web page? A content script? A visible extension page?
– wOxxOm
Nov 13 '18 at 11:24
I was hoping you might be around. Just checked - it's the same from a visible extension page. Each new Ajax request does the handshake. Maybe what I need is a reusable Ajax object.
– Tom
Nov 13 '18 at 11:34
Preconnect works in visible extension page.
– Tom
Nov 13 '18 at 11:51
add a comment |
I have a background script that makes repeated AJAX requests to an Amazon S3 storage bucket.
I've noticed that each time a new request is made to a different object in the same bucket, the background script is having to wait for the DNS lookup (~50ms) and SSL handshake (~80ms).
For some reason I cannot identify, the background script has no memory that it has made previous requests to the same Amazon S3 server / bucket.
I have tried to solve this by adding a preconnect link to the top of the background page - this has no effect. Pinging it with a head request will not actually save me any time.
Any ideas from Chrome Extension wizards?
google-chrome-extension asked Nov 13 '18 at 11:16
TomTom
2901215
I have a background script that makes repeated AJAX requests to an Amazon S3 storage bucket.
I've noticed that each time a new request is made to a different object in the same bucket, the background script is having to wait for the DNS lookup (~50ms) and SSL handshake (~80ms).
For some reason I cannot identify, the background script has no memory that it has made previous requests to the same Amazon S3 server / bucket.
I have tried to solve this by adding a preconnect link to the top of the background page - this has no effect. Pinging it with a head request will not actually save me any time.
Any ideas from Chrome Extension wizards?
google-chrome-extension google-chrome-extension asked Nov 13 '18 at 11:16
TomTom
2901215
asked Nov 13 '18 at 11:16
TomTom
2901215
asked Nov 13 '18 at 11:16
TomTom
2901215
asked Nov 13 '18 at 11:16
TomTom
2901215
asked Nov 13 '18 at 11:16
TomTom
2901215
2901215
Sounds like a quirk/bug in Chrome. Is it any different when performed from a web page? A content script? A visible extension page?
– wOxxOm
Nov 13 '18 at 11:24
I was hoping you might be around. Just checked - it's the same from a visible extension page. Each new Ajax request does the handshake. Maybe what I need is a reusable Ajax object.
– Tom
Nov 13 '18 at 11:34
Preconnect works in visible extension page.
– Tom
Nov 13 '18 at 11:51
add a comment |
Sounds like a quirk/bug in Chrome. Is it any different when performed from a web page? A content script? A visible extension page?
– wOxxOm
Nov 13 '18 at 11:24
I was hoping you might be around. Just checked - it's the same from a visible extension page. Each new Ajax request does the handshake. Maybe what I need is a reusable Ajax object.
– Tom
Nov 13 '18 at 11:34
Preconnect works in visible extension page.
– Tom
Nov 13 '18 at 11:51
Sounds like a quirk/bug in Chrome. Is it any different when performed from a web page? A content script? A visible extension page?
– wOxxOm
Nov 13 '18 at 11:24
Sounds like a quirk/bug in Chrome. Is it any different when performed from a web page? A content script? A visible extension page?
– wOxxOm
Nov 13 '18 at 11:24
I was hoping you might be around. Just checked - it's the same from a visible extension page. Each new Ajax request does the handshake. Maybe what I need is a reusable Ajax object.
– Tom
Nov 13 '18 at 11:34
I was hoping you might be around. Just checked - it's the same from a visible extension page. Each new Ajax request does the handshake. Maybe what I need is a reusable Ajax object.
– Tom
Nov 13 '18 at 11:34
Preconnect works in visible extension page.
– Tom
Nov 13 '18 at 11:51
Preconnect works in visible extension page.
– Tom
Nov 13 '18 at 11:51
add a comment |
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Sounds like a quirk/bug in Chrome. Is it any different when performed from a web page? A content script? A visible extension page?
– wOxxOm
Nov 13 '18 at 11:24
I was hoping you might be around. Just checked - it's the same from a visible extension page. Each new Ajax request does the handshake. Maybe what I need is a reusable Ajax object.
– Tom
Nov 13 '18 at 11:34
Preconnect works in visible extension page.
– Tom
Nov 13 '18 at 11:51