file - How to prevent the browser from canceling downloads from the same url -

-

i hope can me.

we have self written http server used proxy download logfiles other devices (which have httpservers).

we have webpage lists device. each device has own downloadbutton, link same url, different query params (e.g. /logfile.log?device=12345, /logfile.log?device=67890, ..."

the problem is, devices not respond immediately, collect data long time (e.g. 50 seconds) , send data.

my problem is, if user clicks on first button , on second, before first device sent data, download canceled browser. download window (where user can selects if wants open or save file) display first bytes received.

the query params ignored, browser seems think downloads same file , therefore skips previous download.

i think problem should same if want download database server needs time respond , try download same link. should skip first download?

i tried modify http proxy server responds head tells browser content-disposition file specific name downloaded, no bytes file right @ beginning. me hope was, sufficient trigger download window , stop browser canceling download. unfortunately doees not work.

if send random bytes, works expected, of course file not original one.

i tried use form submit button , post instead of href, doesn't work.

can give me hind, how fix it? of course fix in server, if there workaround on clientside, fine me.

thank in advance.


Comments

Post a Comment

Popular posts from this blog

Fail to load namespace Spring Security http://www.springframework.org/security/tags -

-
i have problem namespace of spring security on xhtml page. don't understand why can't load uri, , have following issue: whitelabel error page application has no explicit mapping /error, seeing fallback. tue jul 21 16:58:12 utc 2015 there unexpected error (type=not found, status=404). please need help! possible uri has been changed? best regards you using incorrect namespace url. correct url http://www.springframework.org/schema/security the error page seeing spring source website since not recognize url. try visiting http://www.springsource.org/security/tags in browser update : spring security tags used in jsp page correct tag lib declaration is: <%@ taglib prefix="sec" uri="http://www.springframework.org/security/tags" %>
Read more

sql - MySQL query optimization using coalesce -

-
can explain me why second query faster first? (first 1 takes around 40 seconds, second 1 less 0.1) select releases.feature_code, releases.platform_id, version, release_date, general_available, uri, filesize, display_name, feature_name.full_name, if ((select exists(select 1 release_exceptions releases.feature_code = release_exceptions.feature_code , releases.platform_id = release_exceptions.platform_id , releases.version = release_exceptions.version) = 1), 1, 0) release_exceptions releases left outer join platform using(platform_id) left outer join feature_name using(feature_code) order version desc; ~~~ query 2 ------------------ ~~~ select feature_code, version, release_date, general_available, platform_id, uri, filesize, display_name, feature_name.full_name, coalesce(release_exceptions, 0) release_exceptions mus.releases left outer join ( select distinct feature_code, version, platform_id, 1 release_exceptions mus.release_exceptions ) release_exceptions using ...
Read more

unity3d - Unity local avoidance in user created world -

-
i'm using unity3d networked multiplayer online game have large complex 3d terrain scene forest, trees, cliff, hills, mountains, bounders, etc. players can build structures sort of minecraft, , put them anywhere in scene, or move them around anytime. aside human controlled players, there automated ai players , objects animals roaming around scene following path. the problem how make these automated ai players , animals, able navigate around static , dynamic player created structures, because path follow can blocked player created structures, or other players , other ai objects, cliffs etc. have find away around them or on track if tumble down off high cliff example. so made navmesh , used navagents, takes care of static, non moving objects, how make ai players navigate around each other , dynamic structures created players can number in hundreds? i thought of adding navmeshobstacle everything, result in being attached hundreds of objects since user created structures b...
Read more