Detect HTTP or HTTPS then force HTTPS in JavaScript

Question

Is there any way to detect HTTP or HTTPS and then force usage of HTTPS with JavaScript   I have some codes for detecting the HTTP or HTTPS but I can t force it to use https     I m using the window location protocol property to set whatever the site is to https  then refresh the page to hopefully reload a new https ed URL loaded into the browser   if  window location protocol     https         window location protocol    https       window location reload

User · Answer

I like the answers for this question  But to be creative  I would like to share one more way   lt script gt if  document URL substring 0 5      quot http  quot   window location replace  https     document URL substring 5    lt  script gt

User · Answer

Hi i used this solution works perfectly No Need to check  just use https    lt script language  javascript  type  text javascript  gt  document location  https     window location href substring window location protocol length  window location href length    lt  script gt

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Functional way  window location protocol      http    amp  amp   location href   location href replace   http     https

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Setting location protocol navigates to a new URL  No need to parse slice anything   if  location protocol      https        location protocol    https        Firefox 49 has a bug where https works but https  does not  Said to be fixed in Firefox 54

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I have just had all the script variations tested by Pui Cdm   included answers above and many others using php  htaccess  server configuration  and Javascript  the results are that the script    lt script type  text javascript  gt          function showProtocall             if  window location protocol     https                 window location    https       window location href substring window location protocol length  window location href length               window location reload                        showProtocall     lt  script gt     provided by vivek-srivastava works best and you can add further security in java script

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How about this   if  window location protocol      https          window location    https       window location hostname   window location pathname   window location hash      Ideally you d do it on the server side  though

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It is not good idea because you just temporary redirect user to https and browser doesn t save this redirect   You describe task for web-server  apache  nginx etc  http 301  http 302

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You should check this  https   developer mozilla org en-US docs Web HTTP Headers Content-Security-Policy upgrade-insecure-requests  Add this meta tag to your index html inside head   lt meta http-equiv  Content-Security-Policy  content  upgrade-insecure-requests  gt    Hope it helped

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if  location protocol     http      location href   location href replace   http     https

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Not a Javascript way to answer this but if you use CloudFlare you can write page rules that redirect the user much faster to HTTPS and it s free  Looks like this in CloudFlare s Page Rules

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You can do      lt script type  text javascript  gt                  if  window location protocol     https                 window location protocol    https                  lt  script gt

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The below code assumes that the variable  str  contains your http        string  It checks to see if it is https and if true does nothing  However if it is http it replaces http with https   x000D   x000D  if  str indexOf  https       -1      str   str replace  http    https     x000D   x000D   x000D

User · Answer

Try this  if  location protocol      https          location replace  https   location href substring location protocol length          location href   blah adds this redirect to the browser history  If the user hits the back button  they will be redirected back to the the same page  It is better to use location replace as it doesn t add this redirect to the browser history

[javascript] Detect HTTP or HTTPS then force HTTPS in JavaScript

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