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I have create a simple widget plugin, it's so simple and it make no changes in cookie setting, also it work great in my local site , but in the host i have a problem after activate this plugin and try to login the WordPress again, it says:

ERROR: Cookies are blocked or not supported by your browser.

or a whitepage show after logging in, and dashboard do not appear.

after deactivating the plugin every thing will work correctly!

what is the problem? is there any thing that i must add to my plugin for setting an special cookie?

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  • See wordpress.org/support/topic/… Mar 31, 2014 at 8:13
  • tnx @stealthyninja , but I tried all this ways before,they didn't worked for me.
    – Reza M.A
    Mar 31, 2014 at 8:28
  • @s_ha_dum this is nor syntax error and nor restricted access and also nor hosting issues, and in fact it's not a localized problem(question), so many body have this problem but there is not a right way to solve, I almost searched all the forums and support site but just this solution has helped me! why you mark this question as off-topic?
    – Reza M.A
    Mar 31, 2014 at 17:35

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finally I have found the answer, the answer is in this link:

How To Fix The WordPress White Screen of Death (Theme/Plugin Error)

the answer is too odd! that was happened because new line character(enter) between close and open tag of php...like this: in the line 11 you can see an example

in the line 11 you can see an example, when it have been delete every thing have been right!

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    And that is another good reason not to overuse-- aka abuse-- those PHP tags.
    – s_ha_dum
    Mar 31, 2014 at 13:00

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