ajax - chrome browser not sending 'If-None-Match' for xhr -

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i'm using angular service resource via rest api. server sets etag header value , sets cache-control: no-cache in it's response.

this works expected using firefox, when access same app using chrome, not sending if-none-match. i've tried on current chrome dev , stable channels on both mac , ubuntu box, , same on both, while firefox adding if-none-match correctly.

now, there other non-xhr/static resources fetched conditionally , requests correctly 304 not modified response.

is there can more information why chrome not sending if-none-match header xhr requests?

if you're issuing ajax query in chrome on https, certificate errors, such using self-signed cert on api server, prevent response being cached. seems design.

evidently chrome defect existed fixed in webkit , made chromium / chrome around 2010.

another question recommends setting if-modified-since , if-none-match headers manually using jquery's ifmodified: true , cache: true options. unfortunately won't over-ride chrome's intended behavior not cache https responses server self signed certificate.

testing on server valid signed ssl certificate solved issue me; chrome received 304's text/html content expected, using default jquery ajax methods.


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