URL to an image in a post is changing when permalink is set to custom. Can I avoid this?

You could use

<a href="https://wordpress.stackexchange.com/questions/74874/<?php echo site_url("/images/buy-button.gif" ); ?>" alt="">

Related Posts:

  1. Need help with add_rewrite_rule
  2. How do I add /blog/ as a prefix to permalink structure for blog posts, tag pages, etc.?
  3. Permalink format: singular or plural
  4. How to get pretty URLs with add_query_arg in permalinks
  5. Custom post type permalink endpoint
  6. URL rewrite based on a custom field value
  7. Update URL Snippet to Canonical Permalink URL
  8. Redirect old permalinks to new permalinks
  9. How to change author base without front
  10. How to create a permalink structure for posts in a specific category
  11. How to map permalinks with accented letters to sanitized slugs?
  12. Add custom directory in URL
  13. Using two permalinks for one post
  14. Custom rewrite rules for a $_GET request
  15. Nice RSS Feed URLs for each custom post type
  16. Custom rewrite rules for feeds of custom queries (query_var query strings in URL)?
  17. Put post ID on the custom post type URL
  18. Rewrite url / permalink for default archive – yearly / monthly
  19. Permalinks, Rewrites, Get Variables, Oh My!
  20. Change permalink for a single post entry
  21. Remove the Parent category from the permalink but leave the child category
  22. Rewrite URL for results of a custom WP_Query
  23. Apostrophe in permalink results in page not found
  24. template_include not loading -instead goes to index.php
  25. Can’t get rewrite rules working
  26. Multilanguage URLs
  27. Rewrite my default post URL
  28. When is it a good idea to build a permalink structure from scratch?
  29. I need a custom permalink for my website
  30. How to reset canonical URLs / fix redirect loop
  31. Attachment Page Permalink/URL Rewrite Issue. How to change the actual rewriting?
  32. Permalinks: Page Not Found
  33. Does changing a post title of a published post automatically change permalink?
  34. Remove custom taxonomy base from URL
  35. Is a permastruct possible on pages?
  36. Rewrite rule for a query string
  37. How to add a variable as a tag base?
  38. WPML – how to get the permalinks to display also the default language
  39. Force wordpress to display page with same url structure as categories
  40. How can i have a custom post type with more slugs for each post?
  41. URL rewriting: removing the site’s basename for a specific category
  42. How can I get this custom post type permalink structure? %custom_post_type%-%taxonomy%-%term-postname%
  43. Rewrite rule intended for CPTs gives 404 for pages
  44. Unable to get /%postname%/ permalinks working, 404 on all links
  45. Permalink structure between 2 custom post types and a taxonomy
  46. 404 error using Meta for Permalink rewrite
  47. Disable date based archives for all categories except one
  48. How to rename ‘Tag Base’ with WPeC 3.8?
  49. Custom rewrite rule ignored
  50. How can I emulate permalink behaviour on static pages
  51. How to handle paging/pagination with a custom permalink?
  52. How do I reclaim either deleted pages or their permalinks?
  53. Remove parent page from url
  54. add_rewrite_rule – Page Slug from “/foo-bar/” to “/foo/bar/”
  55. WordPress pages and posts are redirecting to server IP address instead of domain URL [closed]
  56. Access or edit custom generated permalinks with WP_Rewrite
  57. optional parameter in permalink structure
  58. Rewrite rule not passing variable
  59. How to get raw unwritten querystring
  60. replacing post ID by custom post name in url
  61. “set_front” => false on custom post type breaks wp_list_categories links [closed]
  62. All in One Seo and Permalinks
  63. Post with no tag permalink problem
  64. rewrite based slug standar post wp
  65. remove SLASH on single_post but KEEP on categories and parent pages
  66. WordPress keeps removing query var from the URL
  67. How can I access to the same post-type “page” from multiple different urls?
  68. Multiple URL rewrite rules and get every prams
  69. Using a template file for a specific custom URL
  70. Extra url paths as variable
  71. Passing parameter through permalink structure
  72. Add word to permalinks does not transform the urls
  73. Add slug to default post permalinks ONLY
  74. How to add rewrite rule for product compare page?
  75. My permalinks for all pages and posts now include old page titles as parents/categories
  76. a way to support totally different url structure
  77. Pretty Filter URL
  78. WordPress Pagination Custom Rewrite Rule for Pages
  79. How to change URL of my pages?
  80. How can I get .html URL suffixes in permalinks?
  81. rewrites and custom links in page need help with add_rewrite_rule
  82. Converting WP Page to use full explicit paths?
  83. How to create an IIS7 re-write rule for a single category
  84. Prevent guessing slug
  85. All pages lead to home
  86. Once redirected by Rewrite rules, how can WordPress know the page?
  87. Although rewrite engine is on, I get 404 not found on every page
  88. Remove index.php from WP 8.0 install migrated to IIS from Apache (still detecting Apache server)?
  89. Customize category permalinks
  90. Update permalinks
  91. Losing the original URL when using add_rewrite_rule
  92. Custom Permalink Base
  93. Custom permalink variable on single post
  94. Show post content in two different places without redirect
  95. Permalinks, how to show them in post
  96. permalinks url with woocommerce
  97. How to get the perfect WordPress, WooCommerce, Custom Post Type pretty permalinks?
  98. Blog url disappears
  99. Add additional URL variations for a Post
  100. Using a variable in page permalink