Answers.Body: <p>I resolved the issue.  Apparently there is a conflict with the <strong>Deslash</strong> option in Drupal module <strong>Global Redirect 7.x-1.5</strong>.  After unchecking the <strong>Deslash</strong> option, restarting the browser and clicking the New Mailing menu item, it works.</p>
  
  <p>Please beware if you've installed module <strong>Global Redirect 7.x-1.5</strong>.  The <strong>Deslash</strong> option is enabled as a default.</p>
  
  <p><em>Just a thought...
  Although there is no need to change 'civicrm/a/' to 'civicrm/a' in source file civicrm/CRM/Mailing/Controller/Send.php, should it be changed anyway?  After looking at other CRM_Utils_System::url() calls in the module, I see that many other calls do not have '/' as the last character for parameter $path.  But it seems the parameter $path has been set to 'civicrm/a/' in civicrm/CRM/Mailing/Controller/Send.php for quite a while.</em> </p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2015-05-22T16:40:12.573Z
Answers.LastActivityDate: 2015-05-22T16:40:12.573Z
Answers.UserDisplayName: JCN
Answers.Body: <p>Safari on the MAC seems to get this error regardless of the Global Redirect Fix (which doesn't appear to work).</p>
  
  <p>Using 4.6.3
  Removing the trailing slash lines 56, 62, 65 and 71 of civicrm/CRM/Mailing/Controller/Send.php make this work for me on safari/mac.  Someone also reported that it doesn't work on some versions of IE.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-01-21T11:06:13.563Z
Answers.Text: I am having same issue Civi 4.6.11 on safari on Mac os x. However on chrome seems to be working fine..
Answers.UserDisplayName: Tapash
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2015-06-02T12:57:52.813Z
Answers.LastActivityDate: 2015-06-02T12:57:52.813Z
Answers.UserDisplayName: RocXa
Answers.Body: <p>Four years after, still Safari + CiviMailing doesn't cope well ! I still have this issue.
  All right let's use FireFox.</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-12-31T20:58:39.670Z
Answers.LastActivityDate: 2020-12-31T20:58:39.670Z
Answers.UserDisplayName: Ichi
Answers.Body: <p>I just had this same issue using Safari 11.03 on MacOS 10.13.3</p>
  
  <p>It transpired that when I turned off AVG antivirus's "Web Shield" all was well.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2018-01-26T13:52:49.150Z
Answers.LastActivityDate: 2018-01-26T13:52:49.150Z
Answers.UserDisplayName: Graham
Answers.Body: <p>I'm having the same issue for the first time but, a year later than the folks above - I'm providing this info as further clarification of the issue with Safari Browser and this redirect inside CiviMail</p>
  
  <p>Our site is at Drupal 7.52/Civi 4.7.13 
  and another site with same issue is at Drupal 7.50 and I'm not positive which civi version</p>
  
  <p>"unknown path" error when trying to access New Mailing
  Only seems to occur with Safari on a mac (and on an iPhone) </p>
  
  <p>Further clues: The url box at the top of the browser very quickly cycles through the following three urls when I choose "New Mailing"</p>
  
  <p>1) my_domain.com/civicrm/mailing/send?reset=1<br>
  2) my_domain.com/civicrm/a/#/mailing/new<br>
  3) my_domain.com/civicrm/a</p>
  
  <p>On other browsers, the url's cycle through just the first two of these, and don't reach the third which is the thing that causes the "unknown path" error. This is happening on at least a couple of sites as I note above, and doesn't seem to be directly associated with Drupal or CiviCRM updates. </p>
  
  <p>Perhaps there has been an update to Safari that's reawakening an error from a year ago? I'm on Safari Version 10.0.1 (11602.2.14.0.7)but I don't know how to tell when it was updated..</p>
  
  <p>Per above, I tried changing 'civicrm/a/' to 'civicrm/a' in lines 53,59,62,68 of my ...sites/all/modules/civicrm/CRM/Mailing/Controller/Send.php file 
  and it didn't change the error.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-12-11T10:45:04.170Z
Answers.Text: Thanks for your post Rick.  You have posted this as answer but this doesn't appear to answer the original question.  You are unlikely to get a response here so you would be better off posting this as a new question.  Include a link back to this question explaining why the answers don't work for you.
Answers.UserDisplayName: William Mortada
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2016-12-10T21:33:55.970Z
Answers.LastActivityDate: 2016-12-10T22:25:48.390Z
Answers.LastEditDate: 2016-12-10T22:25:48.390Z
Answers.UserDisplayName: Rick Cunningham
Body: <p>It tries to go to "<a href="http://mycivicrmsite/civicrm/a">http://mycivicrmsite/civicrm/a</a>" but it giving an "Unknown path" error.  It doesn't seem to redirect to "<a href="http://mycivicrmsite/civicrm/a#/mailing/new">http://mycivicrmsite/civicrm/a#/mailing/new</a>" which seems to work.</p>
  
  <p>We don't have any extensions installed.</p>
  
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2015-05-21T17:59:35.983Z
Comments.Text: After changing line 56 in file civicrm/CRM/Mailing/Controller/Send.php from CRM_Utils_System::redirect(CRM_Utils_System::url('civicrm/a/', NULL, TRUE, '/mailing/new')); to         CRM_Utils_System::redirect(CRM_Utils_System::url('civicrm/a', NULL, TRUE, '/mailing/new'));  it now works.  The last '/' in the first parameter 'civicrm/a/' was causing the error.  Is this a bug or is there a configuration issue in our instance?
Comments.UserDisplayName: JCN
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2015-09-14T01:00:42.613Z
Comments.Text: I'm having the same issue, but neither of the above solutions seem to work for me. Server config problem? I can't think what might be breaking the URL at the hash(#).
Comments.UserDisplayName: Cullen McGough
Tags: <civimail>
Title: 'Unknown path' error when trying to access New Mailing with version 4.6.2
ThreadText: # 'Unknown path' error when trying to access New Mailing with version 4.6.2
  
  (Asked by: username_0 on 2015-05-21)
  
  It tries to go to "<http://mycivicrmsite/civicrm/a>" but it giving an "Unknown path" error. It doesn't seem to redirect to "<http://mycivicrmsite/civicrm/a#/mailing/new>" which seems to work.
  
  We don't have any extensions installed.
  
  **Tags:** civimail
  
  > **Comments:**
  > **username_0**: After changing line 56 in file civicrm/CRM/Mailing/Controller/Send.php from CRM_Utils_System::redirect(CRM_Utils_System::url('civicrm/a/', NULL, TRUE, '/mailing/new')); to         CRM_Utils_System::redirect(CRM_Utils_System::url('civicrm/a', NULL, TRUE, '/mailing/new'));  it now works.  The last '/' in the first parameter 'civicrm/a/' was causing the error.  Is this a bug or is there a configuration issue in our instance?  
  > **username_1**: I'm having the same issue, but neither of the above solutions seem to work for me. Server config problem? I can't think what might be breaking the URL at the hash(#).  
  
  ---
  
  ## 5 answers
  
  ### Answer by username_0 on 2015-05-22. Score: 6
  
  I resolved the issue. Apparently there is a conflict with the **Deslash** option in Drupal module **Global Redirect 7.x-1.5**. After unchecking the **Deslash** option, restarting the browser and clicking the New Mailing menu item, it works.
  
  Please beware if you've installed module **Global Redirect 7.x-1.5**. The **Deslash** option is enabled as a default.
  
  *Just a thought...
  Although there is no need to change 'civicrm/a/' to 'civicrm/a' in source file civicrm/CRM/Mailing/Controller/Send.php, should it be changed anyway? After looking at other CRM\_Utils\_System::url() calls in the module, I see that many other calls do not have '/' as the last character for parameter $path. But it seems the parameter $path has been set to 'civicrm/a/' in civicrm/CRM/Mailing/Controller/Send.php for quite a while.*
  
  
  ---
  
  ### Answer by username_2 on 2015-06-02. Score: 2
  
  Safari on the MAC seems to get this error regardless of the Global Redirect Fix (which doesn't appear to work).
  
  Using 4.6.3
  Removing the trailing slash lines 56, 62, 65 and 71 of civicrm/CRM/Mailing/Controller/Send.php make this work for me on safari/mac. Someone also reported that it doesn't work on some versions of IE.
  
  > **Comments:**
  > **username_3**: I am having same issue Civi 4.6.11 on safari on Mac os x. However on chrome seems to be working fine..  
  
  ---
  
  ### Answer by username_4 on 2020-12-31. Score: 0
  
  Four years after, still Safari + CiviMailing doesn't cope well ! I still have this issue.
  All right let's use FireFox.
  
  
  ---
  
  ### Answer by username_5 on 2018-01-26. Score: 0
  
  I just had this same issue using Safari 11.03 on MacOS 10.13.3
  
  It transpired that when I turned off AVG antivirus's "Web Shield" all was well.
  
  
  ---
  
  ### Answer by username_6 on 2016-12-10. Score: 0
  
  I'm having the same issue for the first time but, a year later than the folks above - I'm providing this info as further clarification of the issue with Safari Browser and this redirect inside CiviMail
  
  Our site is at Drupal 7.52/Civi 4.7.13
  and another site with same issue is at Drupal 7.50 and I'm not positive which civi version
  
  "unknown path" error when trying to access New Mailing
  Only seems to occur with Safari on a mac (and on an iPhone)
  
  Further clues: The url box at the top of the browser very quickly cycles through the following three urls when I choose "New Mailing"
  
  1) my\_domain.com/civicrm/mailing/send?reset=1  
  2) my\_domain.com/civicrm/a/#/mailing/new  
  3) my\_domain.com/civicrm/a
  
  On other browsers, the url's cycle through just the first two of these, and don't reach the third which is the thing that causes the "unknown path" error. This is happening on at least a couple of sites as I note above, and doesn't seem to be directly associated with Drupal or CiviCRM updates.
  
  Perhaps there has been an update to Safari that's reawakening an error from a year ago? I'm on Safari Version 10.0.1 (11602.2.14.0.7)but I don't know how to tell when it was updated..
  
  Per above, I tried changing 'civicrm/a/' to 'civicrm/a' in lines 53,59,62,68 of my ...sites/all/modules/civicrm/CRM/Mailing/Controller/Send.php file
  and it didn't change the error.
  
  > **Comments:**
  > **username_7**: Thanks for your post Rick.  You have posted this as answer but this doesn't appear to answer the original question.  You are unlikely to get a response here so you would be better off posting this as a new question.  Include a link back to this question explaining why the answers don't work for you.  
  
  ---
  
  